The Sigma 28-105mm F2.8 DG DN Art lens is a highly anticipated addition to the full-frame mirrorless lens lineup, offering a versatile zoom range with a constant, bright f/2.8 aperture, making it a compelling option for professionals and serious enthusiasts seeking a single lens for diverse shooting scenarios.

Its robust build quality and thoughtful design further solidify its position as a strong contender in a competitive market, promising reliable performance and a premium user experience for Sony E-mount and L-mount photographers.

Feature/Product	Sigma 28-105mm F2.8 DG DN Art Lens	Sony FE 24-70mm F2.8 GM II Lens	Tamron 28-75mm F2.8 Di III VXD G2 Lens	Sigma 24-70mm F2.8 DG DN Art Lens	Sony Alpha a7 IV Mirrorless Camera	L-Mount Alliance Cameras	Camera Backpacks
Type	Standard Zoom Lens	Standard Zoom Lens	Standard Zoom Lens	Standard Zoom Lens	Full-Frame Mirrorless Camera	Mirrorless Camera System	Photography Accessory
Mount Compatibility	Sony E, L-Mount	Sony E-Mount	Sony E-Mount	Sony E, L-Mount	Sony E-Mount	L-Mount	Universal
Aperture	F2.8 Constant	F2.8 Constant	F2.8 Constant	F2.8 Constant	N/A Camera Body	N/A Camera System	N/A Accessory
Zoom Range	28-105mm	24-70mm	28-75mm	24-70mm	N/A Camera Body	N/A Camera System	N/A Accessory
Key Feature	Extended Zoom Range	Compact, Lightweight	Excellent Value	Renowned Optical Quality	Hybrid Still/Video Performance	Cross-Brand Compatibility	Protection & Portability
Target User	Versatile Professionals	High-End Professionals	Enthusiasts & Professionals	Professionals	Advanced Enthusiasts/Pros	L-Mount Users	All Photographers

Table of Contents

Optical Performance and Image Quality: A Deep Dive into Sharpness and Bokeh

When you’re talking about a Sigma Art lens, the expectation for optical performance isn’t just high. it’s stratospheric.

The Sigma 28-105mm F2.8 DG DN Art lens steps into this arena with a lot to prove, extending the popular 24-70mm range and promising consistent excellence.

Does it deliver? From what we’ve seen, it absolutely holds its own, often surpassing expectations for a zoom lens with such an ambitious range.

Think of it like a Swiss Army knife that doesn’t compromise on the sharpness of each individual blade.

Edge-to-Edge Sharpness Across the Zoom Range

One of the biggest challenges for any zoom lens, especially one with a wider focal length spread like 28-105mm, is maintaining consistent sharpness from the center to the edges.

Sigma has clearly poured a lot of engineering muscle into this aspect.

Focal Length Variations: It’s common for zooms to have sweet spots. While the 28-105mm performs admirably across the board, some initial reports suggest that performance at the extreme telephoto end 105mm might be marginally softer wide open compared to the wider focal lengths, but it quickly sharpens up with a slight stop down. This is typical and by no means a deal-breaker.

Understanding Aberrations: Chromatic Aberration and Vignetting Control

No lens is perfect, but how a lens controls optical aberrations is a true test of its engineering prowess.

Sigma’s Art series has a reputation for keeping these in check, and the 28-105mm appears to uphold this standard.

Chromatic Aberration CA: Both lateral and longitudinal chromatic aberrations appear to be very well controlled. Lateral CA, which manifests as color fringing in high-contrast areas towards the edges of the frame, is minimal and easily correctable in post-processing. Longitudinal CA, or bokeh fringing, which can appear as green or magenta fringes in out-of-focus areas, is also impressively subdued, especially considering the wide f/2.8 aperture. This means cleaner, more natural-looking transitions from in-focus to out-of-focus areas.
Vignetting: Like most wide-aperture zoom lenses, the 28-105mm F2.8 DG DN Art exhibits some vignetting at f/2.8, particularly at the wider end of the zoom range. This is a natural optical phenomenon where the corners of the image appear darker. However, it’s generally not overly distracting and can often be used creatively or easily corrected with lens profiles in software like Adobe Lightroom or Capture One. Stopping down to f/4 largely mitigates it.
Distortion: Barrel distortion is present at the wide end 28mm, as expected for a lens with this zoom range, and transitions to pincushion distortion at the telephoto end. However, in-camera corrections and modern post-processing software make this a non-issue for most practical applications. The raw files might show it, but the corrected JPEGs or processed RAWs will look clean.

The Art of Bokeh: Creamy Backgrounds and Subject Separation

The constant f/2.8 aperture isn’t just about low-light performance. it’s fundamentally about depth of field control and bokeh quality. For many photographers, especially those doing portraits, events, or even product photography, beautiful background blur is just as important as sharpness.

Smoothness and Creaminess: The 28-105mm F2.8 DG DN Art delivers pleasingly smooth and creamy bokeh. The out-of-focus areas are rendered softly without harsh edges or distracting textures. This allows your subject to stand out beautifully from the background, creating a three-dimensional pop that’s highly sought after.
Aperture Blades: The lens likely features a rounded diaphragm the exact number of blades will be key here, often 9 or 11 for good bokeh, which helps maintain circular out-of-focus highlights even when stopped down a bit. This prevents the dreaded polygonal bokeh that can occur with fewer, straight aperture blades.
Bokeh Balls/Highlights: Specular highlights like distant lights are generally rendered as soft, pleasing circles with minimal onion-ringing or hard edges. This contributes significantly to the overall aesthetic quality of the background blur.

Build Quality and Ergonomics: Crafted for the Demanding Professional

Sigma’s Art series lenses are renowned not just for their optical prowess but also for their robust build quality and thoughtful ergonomics. Mullvad Vpn Review

The 28-105mm F2.8 DG DN Art is no exception, designed to withstand the rigors of professional use while providing a comfortable and intuitive shooting experience.

When you pick up an Art lens, you immediately feel the difference – it’s a tool built for purpose.

Premium Materials and Weather Sealing

This isn’t a lens you treat with kid gloves.

It’s constructed with high-quality materials that inspire confidence.

Durable Construction: The lens barrel is likely a combination of thermally stable composite TSC material and metal components, similar to other Art series lenses. This provides a durable yet manageable weight. The metal lens mount ensures a secure and precise connection to the camera body, minimizing any play or wobble.
Dust and Splash-Proof Structure: For photographers working in diverse environments, weather sealing is paramount. The 28-105mm F2.8 DG DN Art is expected to feature a robust dust- and splash-proof structure with rubber gasketing at the mount and various internal seals. This protection against moisture and dust allows you to shoot confidently in light rain, dusty conditions, or near the beach without excessive worry.
Front Element Coating: The front element will likely feature a water- and oil-repellent coating. This makes it significantly easier to clean off water droplets, fingerprints, or smudges, which is a huge practical benefit when you’re out in the field.

Ergonomics and User Experience

A lens can have phenomenal optics, but if it’s uncomfortable to use or clunky in operation, it detracts from the overall experience.

Sigma pays close attention to the tactile feel and layout of its Art lenses.

Smooth Zoom and Focus Rings: Both the zoom and focus rings are designed for smooth, precise operation.
- Zoom Ring: The zoom ring should have just the right amount of dampening – enough resistance to prevent accidental shifts in focal length, but smooth enough for quick, fluid adjustments. Its placement will be intuitive, likely towards the front of the lens barrel for easy access.
- Focus Ring: The focus ring will offer a pleasant tactile feel, especially important for manual focus adjustments. It should be responsive and allow for precise control over the plane of focus.
Intuitive Controls: Expect to find standard Art series controls.
- AF/MF Switch: A dedicated switch for quickly transitioning between autofocus and manual focus. This is a simple but critical feature for photographers who frequently switch between modes.
- AFL Button Autofocus Lock Button: Programmable button that allows users to lock focus at a specific point. This is incredibly useful for recomposing shots, particularly in portraiture or street photography.
- Iris Ring De-clickable: This is a standout feature for video shooters. An aperture ring provides direct, tactile control over the aperture. The ability to “de-click” this ring means smooth, silent aperture transitions during video recording, preventing distracting clicks in your audio. For stills, the clicks provide haptic feedback, which some photographers prefer.
Size and Weight: While the 28-105mm F2.8 DG DN Art offers an extended zoom range and constant f/2.8 aperture, it’s expected to strike a good balance between size, weight, and optical performance. It won’t be as compact as some f/4 zooms, but it should feel well-balanced on modern full-frame mirrorless bodies like the Sony Alpha a7 IV Mirrorless Camera or various L-Mount Alliance Cameras. Photographers need to consider the total weight of their kit, especially if they plan on carrying it for extended periods in a Camera Backpacks.

Autofocus Performance: Speed, Accuracy, and Video Capabilities

Autofocus performance is non-negotiable in modern photography, especially for a versatile lens like the 28-105mm F2.8 DG DN Art, which is likely to be used in dynamic scenarios like event photography, portraits, and even some casual sports.

Sigma has made significant strides in AF technology for their mirrorless lenses, and this new offering should build upon that success.

Fast and Reliable Autofocus System

Sigma’s recent DG DN lenses have largely adopted stepping motor systems for their autofocus, which are known for their blend of speed and silence. Ultraav Review

Stepping Motor STM: The 28-105mm F2.8 DG DN Art is highly anticipated to feature a high-speed STM Stepping Motor or similar linear motor system. These motors provide fast, decisive autofocus acquisition, making it suitable for capturing fleeting moments. The speed is crucial for subjects that move unpredictably.
Accuracy: Speed without accuracy is useless. This lens is expected to deliver pinpoint accuracy, particularly important when shooting wide open at f/2.8 where depth of field is shallow. Modern mirrorless camera systems, especially those with advanced Eye AF and Real-time Tracking, will heavily benefit from a precisely calibrated lens AF system.
Low Light Performance: The f/2.8 constant aperture naturally helps the autofocus system by allowing more light to reach the sensor’s AF points. The lens should perform admirably in low-light conditions, maintaining focus speed and accuracy even when ambient light levels drop.

Video-Friendly Autofocus Features

With the increasing convergence of photo and video capabilities in modern cameras, lenses need to perform equally well for both.

Sigma understands this, and the 28-105mm F2.8 DG DN Art is likely designed with video shooters in mind.

Quiet Operation: Stepping motors are inherently much quieter than traditional DC motors, making them ideal for video recording where distracting AF noise can ruin audio. This is a critical consideration for videographers who use on-camera microphones or need clean sound.
Smooth Transitions: For video, sudden, jerky focus transitions are highly undesirable. The autofocus system should provide smooth, cinematic focus pulls, whether initiated by the camera’s subject tracking or manual input.
Reduced Focus Breathing: Focus breathing, where the angle of view subtly changes as you rack focus, can be distracting in video. Sigma has been actively working to minimize focus breathing in its newer DG DN lenses, and the 28-105mm is expected to show significant improvement in this area. This ensures a more professional look for your video content.
Compatibility with Camera AF Modes: The lens will be fully compatible with advanced autofocus features found in modern Sony E-mount and L-mount cameras, including:
- Real-time Tracking
- Eye AF Human and Animal
- Face Detection
- AF-C Continuous Autofocus for both stills and video. This seamless integration ensures you get the most out of your camera body’s sophisticated AF capabilities.

Versatility and Use Cases: Why This Lens Might Be Your Next Go-To

The 28-105mm F2.8 DG DN Art isn’t just another zoom lens. it’s a statement of versatility.

This focal length range, coupled with a constant f/2.8 aperture, positions it as a powerful, do-it-all option for a broad spectrum of photographic genres.

If you’re looking to minimize lens changes or travel light without sacrificing quality, this lens warrants serious consideration.

A Single Lens for Diverse Shooting Scenarios

Imagine having one lens that can handle the vast majority of your photographic needs without needing to swap. That’s the promise of the 28-105mm F2.8.

Event Photography: From wide shots of the venue at 28mm to tighter candid portraits of guests at 105mm, all with beautiful background blur thanks to f/2.8, this lens is an event photographer’s dream. You can cover weddings, conferences, or parties efficiently.
Portraiture: The 105mm end at f/2.8 provides excellent subject separation and compression for stunning portraits. The 28-70mm range offers classic portrait focal lengths, making it incredibly adaptable for various styles, from environmental portraits to headshots. The creamy bokeh discussed earlier is a huge asset here.
Street Photography: The 28mm wide end is perfect for capturing the broader scene and contextual shots. As you zoom to 50mm or 75mm, you can isolate subjects without needing to get too close, maintaining a discreet presence. The constant f/2.8 allows for shooting in varied lighting conditions, which is common in street photography.
Travel Photography: This lens could potentially be the only lens you need for a trip. Covering wide-angle vistas, street scenes, portraits of locals, and even some detail shots from a distance means less gear to carry and fewer missed moments due to lens changes. It simplifies your packing and enhances your travel experience.
General Purpose/Walk-around Lens: For everyday shooting, where you encounter a variety of subjects and lighting, this lens is incredibly adaptable. It’s the kind of lens you can keep on your camera and feel confident that you’re ready for almost anything.

Low-Light Performance and Depth of Field Control

The constant f/2.8 aperture is a cornerstone of this lens’s versatility.

Excellent in Low Light: The bright f/2.8 aperture allows ample light to reach the camera’s sensor, enabling faster shutter speeds in dim conditions to freeze motion or keep ISO levels lower to reduce noise. This is critical for indoor events, nighttime street photography, or any scenario where flash isn’t an option.
Shallow Depth of Field: Beyond low light, f/2.8 provides significant control over depth of field. You can easily blur backgrounds to isolate your subject, creating a professional and aesthetically pleasing look. This separation is key for impactful portraits and compelling storytelling.
Creative Control: The ability to achieve shallow depth of field across such a wide zoom range opens up numerous creative possibilities, allowing photographers to direct the viewer’s eye and simplify complex scenes.

Comparison with Competitors: Standing Out in a Crowded Market

The market for full-frame mirrorless standard zoom lenses is incredibly competitive.

Sigma isn’t just throwing another lens into the ring. they’re aiming to carve out a distinct niche.

While the Sony FE 24-70mm F2.8 GM II Lens and Tamron 28-75mm F2.8 Di III VXD G2 Lens are established players, the Sigma 28-105mm F2.8 DG DN Art brings its unique value proposition, particularly with its extended telephoto reach.

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How it Stacks Up Against the Sony FE 24-70mm F2.8 GM II

The Sony GM II is widely regarded as one of the best standard zooms available, known for its exceptional sharpness, compact size, and blazing-fast AF.

Optical Performance: Both lenses are optically superb. The Sony GM II is incredibly sharp edge-to-edge. The Sigma 28-105mm F2.8 DG DN Art is expected to be equally sharp in the overlapping 28-70mm range, with its 105mm end likely holding up very well for a zoom.
Size and Weight: The Sony GM II is remarkably compact and lightweight for a GM lens, a significant achievement. The Sigma 28-105mm, with its longer zoom range, will likely be larger and heavier than the GM II. This is a trade-off for the increased versatility.
Autofocus: Sony’s GM lenses often set the benchmark for AF speed and tracking on Sony bodies. Sigma’s recent DG DN lenses have closed the gap considerably, offering very fast and reliable AF. The Sony might still have a marginal edge in absolute speed or tracking, but the Sigma will be more than adequate for most professional uses.
Price: Sigma lenses typically offer excellent value for money. The Sigma 28-105mm F2.8 DG DN Art is expected to be more affordable than the premium-priced Sony GM II, making it an attractive option for photographers who need that extra reach without breaking the bank.

Battling the Tamron 28-75mm F2.8 Di III VXD G2 Lens

Tamron’s 28-75mm F2.8 G2 is a hugely popular choice, offering a fantastic balance of performance, size, and affordability.

Focal Length Range: Again, the Sigma’s 105mm reach is a clear advantage over Tamron’s 75mm. This 30mm difference is significant for portraits, event coverage, and general versatility.
Optical Performance: The Tamron 28-75mm G2 is optically very strong, especially considering its price point. The Sigma Art lens, however, is likely to deliver superior corner sharpness and potentially better aberration control, aligning with its Art series designation which targets absolute optical excellence.
Build Quality: Both lenses offer good build quality, but Sigma’s Art series lenses generally have a more premium, robust feel with more extensive weather sealing compared to the Tamron, which is designed to be very light and compact.
Autofocus: Tamron’s VXD linear motor is very fast and quiet. Sigma’s AF on the Art lenses is also top-tier. Both should provide excellent performance for stills and video.
Price: The Tamron 28-75mm G2 is known for its aggressive pricing. The Sigma 28-105mm F2.8 DG DN Art will likely sit at a higher price point than the Tamron, justified by its extended range, potentially superior optical performance, and more premium build.

The Sigma 24-70mm F2.8 DG DN Art vs. the New 28-105mm

Sigma already has a formidable 24-70mm F2.8 DG DN Art lens. So, why the 28-105mm?

Focal Length Trade-off: The 24-70mm is slightly wider at the wide end 24mm vs 28mm, which some photographers prefer for true wide-angle shots. However, the 28-105mm offers the significant advantage of 105mm telephoto reach.
Purpose: The 24-70mm is arguably the workhorse, standard zoom. The 28-105mm is for those who prioritize the extended telephoto versatility, potentially minimizing the need for a separate short telephoto prime or zoom. It’s about maximizing the utility of a single lens.
Size/Weight: The 28-105mm will likely be larger and heavier than its 24-70mm sibling due to the increased optical complexity for the longer zoom range.
Target Audience: If 24mm is critical for your work, the 24-70mm might still be the better choice. If you often find yourself needing more reach than 70mm, and 28mm is wide enough, then the 28-105mm is a compelling upgrade. It’s about personal preference and workflow.

In essence, the Sigma 28-105mm F2.8 DG DN Art positions itself as the “one-lens solution” for photographers who value extended telephoto reach over ultra-wide capabilities in their primary zoom, all while maintaining the stellar optical performance and build quality expected from the Art series.

Technical Specifications: What Powers This Lens

Understanding the technical specifications of a lens provides crucial insight into its capabilities and how it achieves its performance.

The Sigma 28-105mm F2.8 DG DN Art is a complex piece of engineering, and its internal design is key to its optical excellence.

Optical Construction: Elements and Groups

The heart of any lens is its optical formula.

Sigma’s Art lenses are known for incorporating specialized glass elements to correct aberrations.

Complex Design: Expect a highly complex optical construction with a significant number of elements arranged in multiple groups. This is necessary to maintain optical quality across a wide zoom range at a constant f/2.8 aperture. For context, the Sigma 24-70mm F2.8 DG DN Art has 19 elements in 15 groups. The 28-105mm is likely to have an even higher element count.
Specialized Glass Elements: The optical design will almost certainly include various specialized glass elements to combat chromatic aberration, spherical aberration, and distortion. These typically include:
- FLD “F” Low Dispersion glass elements: These are Sigma’s highest-grade low dispersion glass, similar in performance to fluorite. They help to minimize axial longitudinal and transverse lateral chromatic aberrations.
- SLD Special Low Dispersion glass elements: Also used to reduce chromatic aberrations, ensuring high contrast and color fidelity.
- Aspherical elements: These elements have non-spherical surfaces and are crucial for correcting spherical aberrations and distortion, leading to sharper images from center to edge and a more compact design.
Coatings: Multi-layer coatings are essential for maximizing light transmission and minimizing flare and ghosting. Sigma employs its Super Multi-Layer Coating SML and potentially Nano Porous Coating NPC to achieve high contrast and vibrant color rendition, even in challenging backlit situations.

Aperture and Minimum Focus Distance

These two specifications directly impact creative control and versatility. Acer Swift Edge 16 2024 Review

Maximum Aperture: A constant f/2.8 across the entire 28-105mm zoom range. This is the defining feature, enabling low-light shooting and excellent depth of field control.
Minimum Aperture: Typically, f/22 for most standard zoom lenses. This allows for maximum depth of field when desired, though diffraction effects often become noticeable at such small apertures.
Rounded Diaphragm Blades: The lens will feature a high number of rounded diaphragm blades e.g., 9 or 11. This ensures that out-of-focus highlights remain circular, contributing to smooth, pleasing bokeh.
Minimum Focus Distance MFD and Maximum Magnification Ratio MMR: While not a true macro lens, a good MFD allows for compelling close-up shots. The MFD will likely vary across the zoom range. For example, it might be shorter at the wide end e.g., around 19-30cm and longer at the telephoto end e.g., around 38-50cm. The MMR will indicate how close you can fill the frame with small subjects e.g., 1:4 or 1:3. This can be surprisingly useful for detail shots of flowers, food, or products.

Size, Weight, and Filter Thread

These practical aspects influence the handling and portability of the lens.

Filter Thread Size: A common professional filter thread size, likely 77mm or 82mm. This is important for photographers who use circular polarizers, ND filters, or other screw-in filters. A larger diameter often correlates with better optical performance, as it allows for larger front elements.
Dimensions Diameter x Length: The physical size will be a key consideration, especially when pairing it with smaller mirrorless bodies or fitting it into a Camera Backpacks. Given the extended zoom range, it will be larger than the https://amazon.com/s?k=Sony+FE+24-70mm+F2.8 GM II Lens and the Tamron 28-75mm F2.8 Di III VXD G2 Lens.
Weight: Expect a noticeable weight. While still lighter than comparable DSLR lenses, a professional-grade f/2.8 zoom with this range will have some heft to it. This weight contributes to the sturdy feel but also needs to be factored into your carrying capacity.

Understanding these technical aspects helps explain how the Sigma 28-105mm F2.8 DG DN Art achieves its reported performance and how it might fit into your existing gear setup.

Value Proposition and Target Audience: Is This Lens For You?

The Sigma 28-105mm F2.8 DG DN Art is not just a lens.

It’s a strategic offering designed to appeal to a specific set of photographers looking for a unique blend of versatility, optical quality, and value.

Its value proposition is strong, especially when considering the alternative of carrying multiple primes or a more limited zoom.

Who is This Lens For?

This lens is squarely aimed at photographers who demand high performance and flexibility, without necessarily wanting to invest in a full suite of primes or continually swap lenses.

The Event Photographer: Imagine shooting a wedding. You need a wide shot of the ceremony, then a tight shot of the rings, followed by natural light portraits. The 28-105mm f/2.8 covers all these bases with excellent image quality, minimizing lens changes and ensuring you don’t miss a moment. The constant f/2.8 aperture is crucial for low-light reception halls.
The Portrait Photographer Seeking Versatility: While 85mm or 135mm primes are classic for portraits, the 28-105mm offers the ability to capture environmental portraits at wider focal lengths and then instantly zoom to 105mm for compressed, shallow depth-of-field headshots. It’s incredibly efficient for studio work or outdoor sessions where you want to vary your shot composition quickly.
The Enthusiast Upgrading from Kit Lenses: If you’re moving beyond basic kit lenses and want a significant leap in image quality, low-light performance, and creative control, this lens offers a professional-grade experience. It’s a substantial investment but provides capabilities far beyond entry-level glass.
The Hybrid Shooter Photo & Video: With its likely minimized focus breathing, quiet AF, and de-clickable aperture ring if included, this lens is highly attractive to content creators who seamlessly switch between stills and video. The constant f/2.8 is excellent for both, allowing for consistent exposures and background blur.
Photographers Prioritizing Reach over Ultra-Wide: If 24mm isn’t an absolute necessity for your widest shots, and you frequently find yourself wishing for more reach than 70mm, then the 28-105mm is a much more logical choice than a 24-70mm lens.

Value Against Price Point

Sigma’s Art series lenses generally offer a premium optical experience at a more accessible price point than first-party equivalents, especially Sony’s GM lenses.

Affordable Excellence: While this lens won’t be cheap, it will undoubtedly offer significant value for its optical performance, build quality, and extended versatility. When you compare its potential cost to the Sony FE 24-70mm F2.8 GM II Lens, the Sigma is likely to be a more budget-friendly option while still delivering professional-grade results.
“One Lens” Cost Savings: Consider the alternative: buying a 24-70mm F2.8 and then needing to add an 85mm or 105mm prime to get that extra reach and bokeh. The combined cost often exceeds that of a single, highly versatile lens like the 28-105mm. Plus, you save on the hassle and weight of carrying multiple lenses.
Investment in Your Craft: For serious hobbyists or emerging professionals, this lens represents a solid investment that will elevate their photography and provide a tool capable of handling a wide range of assignments.

In summary, the Sigma 28-105mm F2.8 DG DN Art is for the discerning photographer who needs a highly versatile, optically brilliant, and reliably built workhorse lens that can stay on their camera for the majority of their shooting, without needing to compromise on a constant f/2.8 aperture or critical image quality. It’s about maximizing utility and performance in a single package.

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Potential Downsides and Considerations: Real-World Use

No lens is perfect, and while the Sigma 28-105mm F2.8 DG DN Art promises a lot, it’s essential to consider some potential downsides or trade-offs before making a purchase decision.

Understanding these points helps manage expectations and ensures the lens is the right fit for your specific needs and shooting style.

Size and Weight

This is likely to be the most significant trade-off for the extended zoom range and constant f/2.8 aperture.

Larger and Heavier than a 24-70mm f/2.8: Physics dictates that to achieve a broader zoom range at a constant wide aperture, more glass elements are generally required. This will inevitably lead to a larger and heavier lens compared to a 24-70mm f/2.8, like the Sony FE 24-70mm F2.8 GM II Lens or even Sigma’s own 24-70mm Art.
Handheld Shooting Fatigue: For extended periods of handheld shooting, especially on lighter mirrorless bodies, the weight might become a factor, leading to fatigue. If you prioritize extreme portability and light weight, this might not be your ideal “walk-around” lens, though its versatility could still outweigh this for many.
Balancing on Smaller Bodies: While it will balance well on pro-level mirrorless bodies like the Sony Alpha a7 IV Mirrorless Camera, smaller or entry-level cameras might feel front-heavy, potentially impacting handling.

Price Point

While Sigma lenses often offer excellent value compared to first-party equivalents, a Sigma Art zoom is still a significant investment.

Premium Segment: This lens will occupy the premium segment of the zoom lens market. It will be more expensive than popular budget-friendly alternatives like the https://amazon.com/s?k=Tamron+28-75mm+F2.8 Di III VXD G2 Lens.
Budget Considerations: For photographers on a tighter budget, a combination of a more affordable standard zoom like the Tamron and a fast, affordable prime e.g., a 85mm f/1.8 might offer similar overall capabilities for less initial outlay, though with the trade-off of needing to swap lenses.

Lack of Optical Image Stabilization OIS

While many modern mirrorless cameras feature excellent in-body image stabilization IBIS, the absence of OIS in the lens itself is a point to consider.

Reliance on IBIS: If your camera body lacks IBIS, or has less effective IBIS, then the lack of OIS in the lens means you’ll be more susceptible to camera shake, especially at the longer focal lengths 105mm and slower shutter speeds.
Combined Stabilization: For cameras with strong IBIS, the combined effect of IBIS and OIS Dual IS can provide superior stabilization for very slow shutter speeds or smoother video footage. While the Sigma lens will leverage the camera’s IBIS, it won’t offer that extra layer of stabilization. This might be a minor point for stills photographers but more significant for videographers, especially those shooting handheld.

Wider End Limitations 28mm vs. 24mm

For some photographers, the starting focal length of 28mm might feel slightly limited compared to the more common 24mm on other professional standard zooms.

Crop Sensor Use: If used on an APS-C camera, the effective focal length becomes approximately 42-157.5mm, losing any wide-angle capability. This lens is clearly designed for full-frame sensors.

These considerations aren’t necessarily flaws, but rather characteristics that dictate the lens’s ideal application.

For many, the benefits of the extended zoom range and constant f/2.8 aperture will far outweigh these minor compromises.

Future-Proofing and Longevity: A Long-Term Investment

When you invest in a professional-grade lens like the Sigma 28-105mm F2.8 DG DN Art, you’re not just buying glass and metal. Amazon Freevee Review

You’re buying a tool intended to last and perform optimally for years to come.

Sigma’s commitment to its Art series and the DG DN designation for mirrorless systems bodes well for its future relevance and longevity.

Designed for Mirrorless Systems

The “DG DN” in its name signifies that this lens was specifically designed for full-frame mirrorless cameras. This is a critical distinction from “DG” lenses, which are DSLR designs adapted for mirrorless mounts.

Optimized Optical Path: Being a native mirrorless design means the optical elements are optimized for the shorter flange distance of mirrorless cameras. This often leads to better optical performance, especially in the corners, and potentially more compact designs compared to adapted DSLR lenses.
Electronic Communication: The lens is built from the ground up for seamless electronic communication with mirrorless camera bodies. This ensures full compatibility with the latest autofocus systems Eye AF, Real-time Tracking, in-camera lens corrections, and advanced video features. This contrasts with older adapted lenses where functionality might be limited or less performant.
Mount Compatibility: Its availability for both Sony E-mount and L-mount Leica, Sigma, Panasonic provides a broader user base and inherent flexibility. For L-mount users, it slots into a growing ecosystem of high-quality lenses from multiple manufacturers, ensuring long-term support.

Software Updates and Support

Sigma has a strong track record of providing firmware updates for its lenses.

Firmware Updates: Lenses, especially complex ones like f/2.8 zooms, often receive firmware updates to improve autofocus performance, address minor bugs, or ensure compatibility with new camera bodies. Sigma’s Global Vision lenses, including the Art line, can often be updated via the Sigma USB Dock though for DN lenses, updates are usually done directly through the camera. This commitment to post-launch support helps ensure the lens remains optimized as camera technology evolves.
Service and Repair: Sigma maintains a global service network, ensuring that if your lens ever needs calibration or repair, you have access to professional support. This is crucial for a professional tool.

Robust Build Quality for Longevity

As discussed earlier, the build quality of Art series lenses is exceptional.

Durable Materials: The combination of thermally stable composite TSC and metal components ensures the lens can withstand the rigors of professional use. This isn’t a lens that will quickly develop rattles or looseness.
Weather Sealing: The comprehensive dust and splash-proof construction is not just about shooting in bad weather. it’s about protecting the delicate internal components from environmental contaminants over time. This extends the lifespan of the lens significantly, reducing the risk of internal dust or moisture damage.
Professional Tool: Investing in a lens with such robust construction means it’s less likely to require frequent maintenance or replacement due to wear and tear, making it a more cost-effective long-term asset for your photography business or serious hobby.

Frequently Asked Questions

What is the Sigma 28-105mm F2.8 DG DN Art lens?

The Sigma 28-105mm F2.8 DG DN Art lens is a highly anticipated professional-grade standard zoom lens designed for full-frame mirrorless cameras, offering a versatile 28mm to 105mm focal length range with a constant, bright f/2.8 aperture.

What camera mounts is the Sigma 28-105mm F2.8 DG DN Art compatible with?

It is compatible with Sony E-mount and L-mount camera systems, covering popular cameras like the Sony Alpha a7 IV Mirrorless Camera and various L-Mount Alliance Cameras.

Is the Sigma 28-105mm F2.8 DG DN Art lens good for portraits?

Yes, absolutely.

The 105mm focal length at f/2.8 provides excellent compression and beautiful background separation, making it ideal for stunning portraits. Wix Stores Review

The smooth bokeh further enhances its portrait capabilities.

How does the Sigma 28-105mm F2.8 DG DN Art compare to the Sony 24-70mm F2.8 GM II?

The Sigma offers an extended telephoto range up to 105mm vs. 70mm, while the Sony provides a slightly wider 24mm at the short end.

The Sony GM II is generally more compact and lighter, but the Sigma is expected to offer comparable optical quality and potentially better value for its versatility.

Is the Sigma 28-105mm F2.8 DG DN Art weather-sealed?

Yes, like other Sigma Art DG DN lenses, it is expected to feature a robust dust- and splash-proof construction with seals at the mount and other key areas for reliable use in various conditions.

Does the Sigma 28-105mm F2.8 DG DN Art have image stabilization?

No, the lens itself does not have optical image stabilization OIS. It relies on the in-body image stabilization IBIS of compatible mirrorless camera bodies to compensate for camera shake.

What is the minimum focus distance of this lens?

The minimum focus distance will likely vary across the zoom range, typically being shorter at the wide end e.g., around 19-30cm and longer at the telephoto end e.g., around 38-50cm.

What is the filter thread size for the Sigma 28-105mm F2.8 DG DN Art?

The exact filter thread size is usually 77mm or 82mm, common sizes for professional zoom lenses.

Is this lens suitable for video shooting?

Yes, it is expected to be highly suitable for video with features like quiet autofocus, minimized focus breathing, and potentially a de-clickable aperture ring for smooth exposure transitions.

What kind of autofocus motor does the Sigma 28-105mm F2.8 DG DN Art use?

It is highly anticipated to use a high-speed stepping motor STM or similar linear motor system for fast, quiet, and accurate autofocus.

Is the bokeh quality good with the Sigma 28-105mm F2.8 DG DN Art?

Yes, with its constant f/2.8 aperture and likely rounded diaphragm blades, the lens is expected to produce very smooth and pleasing bokeh, effectively separating subjects from backgrounds. Benq Ht2060 Review

Is this lens heavy?

It is expected to be heavier and larger than a 24-70mm f/2.8 lens due to its extended zoom range, but still manageable for professional use and lighter than comparable DSLR lenses.

Can I use the Sigma 28-105mm F2.8 DG DN Art on an APS-C camera?

Yes, you can, but the effective focal length would be cropped to approximately 42-157.5mm, losing the wide-angle capabilities for which the lens is designed. It’s primarily intended for full-frame sensors.

What are the main advantages of a constant f/2.8 aperture?

A constant f/2.8 aperture provides excellent low-light performance, allowing for faster shutter speeds and lower ISOs, and offers consistent depth of field control across the entire zoom range for beautiful background blur.

How durable is the Sigma 28-105mm F2.8 DG DN Art lens?

It features premium construction with thermally stable composite TSC and metal components, characteristic of Sigma’s Art series, indicating high durability and robust build quality for professional use.

Will this lens receive firmware updates?

Yes, Sigma typically provides firmware updates for its DG DN lenses to improve performance, add features, and ensure compatibility with future camera bodies. These are often applied via the camera.

Is the Sigma 28-105mm F2.8 DG DN Art good for landscapes?

How does the price of the Sigma 28-105mm F2.8 DG DN Art compare to the Tamron 28-75mm F2.8 G2?

The Sigma is expected to be priced higher than the more budget-friendly Tamron 28-75mm F2.8 G2, justified by its longer telephoto reach, potentially superior optical performance, and premium Art series build.

Is there significant focus breathing in the Sigma 28-105mm F2.8 DG DN Art?

Sigma has been actively working to minimize focus breathing in its newer DG DN lenses, and the 28-105mm is expected to exhibit very well-controlled focus breathing, which is beneficial for video.

Can this lens replace multiple prime lenses?

For many shooting situations, yes.

Its versatility allows it to cover the most used prime focal lengths 28mm, 35mm, 50mm, 75mm, 85mm, 105mm at a fast f/2.8 aperture, reducing the need to carry and swap multiple primes.

What types of photography is this lens best suited for?

It’s an excellent all-around choice for event photography, portraiture, street photography, travel photography, and general-purpose shooting where versatility and high image quality are paramount. Tcl Qm7 Class 85 Inch Tv 85Qm751G Review

Does the lens come with a lens hood?

Yes, Sigma Art lenses typically come with a robust petal-shaped lens hood to help reduce flare and protect the front element.

What is the advantage of a “DG DN” lens design?

“DG DN” signifies that the lens is designed from the ground up specifically for mirrorless cameras, optimizing the optical path for shorter flange distances and ensuring seamless electronic communication with the camera body.

Is the Sigma 28-105mm F2.8 DG DN Art sharp wide open at f/2.8?

Yes, the lens is expected to deliver outstanding sharpness even wide open at f/2.8 across most of its focal range, especially in the center, a hallmark of Sigma’s Art series.

Does the lens suffer from significant chromatic aberration?

No, the lens is expected to exhibit very well-controlled chromatic aberration, thanks to its advanced optical design incorporating FLD and SLD glass elements.

How does the 28-105mm range benefit photographers?

The 28-105mm range offers a unique blend of wide-angle capabilities for broader scenes and a significantly extended telephoto reach for portraits and isolating subjects, providing exceptional versatility in a single lens.

Is the autofocus quiet enough for video?

Yes, the expected stepping motor STM or linear motor autofocus system is designed to be very quiet, making it well-suited for video recording without capturing distracting AF noise.

Can I use filters on this lens?

Yes, it will have a standard filter thread likely 77mm or 82mm allowing you to attach circular polarizers, ND filters, and other screw-in filters.

What kind of coating does the front element have?

The front element will likely feature a water- and oil-repellent coating, making it easier to clean and resistant to smudges and water droplets.

Is this lens a good investment for a professional photographer?

Yes, its combination of versatile focal range, constant f/2.8 aperture, exceptional optical performance, and robust build quality makes it a strong, long-term investment for professional photographers needing a reliable workhorse lens.

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