Canon Rf 100 500Mm F45 71 L Is Usm Review

The Canon RF 100-500mm f/4.5-7.1L IS USM is an exceptional telephoto zoom lens, offering a versatile focal range, superb optical performance, and robust build quality that makes it a top-tier choice for wildlife, sports, and aviation photographers using Canon’s EOS R mirrorless system.

Its lightweight design for its class, combined with effective image stabilization and lightning-fast autofocus, solidifies its position as a go-to lens for capturing distant subjects with clarity and precision.

While the variable aperture might raise an eyebrow for some, its performance across the zoom range more than compensates, delivering sharp images even wide open.

This lens represents a significant investment, but its capabilities and the results it delivers make it a highly worthwhile addition to a serious photographer’s kit.

Here’s a comparison list of top products that complement or offer alternatives within the telephoto photography space:

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• Canon RF 100-500mm f/4.5-7.1L IS USM

  

  • Key Features: 100-500mm focal range, L-series optics, 5-stop optical image stabilization, Dual Nano USM autofocus.
  • Average Price: Around $2,799.00
  • Pros: Exceptional sharpness throughout the zoom range, relatively compact and lightweight for its reach, fast and silent autofocus, robust weather-sealed construction.
  • Cons: Variable aperture f/4.5-7.1, high price point, not fully compatible with RF 1.4x and 2x extenders at its widest focal lengths.

• Canon RF 70-200mm f/2.8L IS USM

  • Key Features: 70-200mm focal range, constant f/2.8 aperture, 5-stop optical image stabilization, Dual Nano USM autofocus.
  • Pros: Constant f/2.8 aperture excellent for low light and background blur, incredibly sharp, compact for a 70-200mm f/2.8, professional-grade build.
  • Cons: Shorter reach than the 100-500mm, same high price point.

• Canon RF 600mm f/11 IS STM

  • Key Features: Fixed 600mm focal length, f/11 fixed aperture, retractable design, 5-stop optical image stabilization, STM autofocus.
  • Average Price: Around $799.00
  • Pros: Extremely lightweight and compact for a 600mm, very affordable, excellent reach for distant subjects.
  • Cons: Fixed f/11 aperture limits low-light use and background blur, no zoom, plastic construction.

• Canon RF 800mm f/11 IS STM

  • Key Features: Fixed 800mm focal length, f/11 fixed aperture, retractable design, 4-stop optical image stabilization, STM autofocus.
  • Average Price: Around $999.00
  • Pros: Incredible reach, very portable and affordable for an 800mm lens, good for bright conditions.
  • Cons: Fixed f/11 aperture is very limiting, no zoom, less robust build than L-series lenses.

• Sony FE 200-600mm f/5.6-6.3 G OSS For comparison as a direct competitor on a different system

  • Key Features: 200-600mm focal range, constant internal zooming, G series optics, Optical SteadyShot stabilization, Direct Drive SSM autofocus.
  • Average Price: Around $1,999.00
  • Pros: Internal zoom no extending barrel, excellent sharpness, good value, fast AF.
  • Cons: Heavier than the Canon 100-500mm, not a native Canon RF lens.

• Sigma 150-600mm f/5-6.3 DG OS HSM Contemporary For comparison, often adapted to Canon EF, less so RF

  • Key Features: 150-600mm focal range, variable aperture, optical stabilization, HSM autofocus motor.
  • Average Price: Around $899.00
  • Pros: Excellent reach for the price, decent image quality, versatile for wildlife.
  • Cons: Heavier and larger than the Canon 100-500mm, requires an adapter for RF mount with potential performance limitations, not as optically refined as L-series.

• Tamron SP 150-600mm f/5-6.3 Di VC USD G2 Similar to Sigma, often adapted

  • Key Features: 150-600mm focal range, variable aperture, Vibration Compensation VC, USD autofocus.
  • Average Price: Around $1,199.00
  • Pros: Strong competitor to Sigma, good image quality, effective stabilization, robust build.
  • Cons: Also requires an adapter for RF mount, not as compact as the native RF 100-500mm, heavier.

Optical Performance and Image Quality

When you’re shelling out serious cash for an L-series lens, you expect nothing short of excellence in optical performance, and the Canon RF 100-500mm f/4.5-7.1L IS USM largely delivers. This isn’t just marketing hype.

It’s tangible in the sharpness, contrast, and color rendition you get.

Sharpness Across the Zoom Range

This is where the rubber meets the road for a telephoto zoom.

A common pitfall for zooms, especially those with a wide focal range like 100-500mm, is a drop-off in sharpness at the extreme ends or wide open.

• Center Sharpness: The RF 100-500mm demonstrates outstanding center sharpness from 100mm all the way up to 500mm, even at its widest respective apertures. This is crucial for subjects like distant birds or athletes where pinpoint detail is paramount. You’ll consistently capture feather detail or jersey textures with remarkable clarity.
• Sweet Spot: Generally, stopping down by about 1/3 to 1 stop from the maximum aperture at any given focal length will yield the absolute best sharpness. For example, at 500mm, shooting at f/8 instead of f/7.1 can bring out that extra pop.

Chromatic Aberration and Flare Control

Nobody wants ugly color fringing ruining their crisp shots, nor distracting flare from bright light sources. Tcl 20S Review

• Chromatic Aberration CA: The RF 100-500mm exhibits remarkably well-controlled chromatic aberration. Thanks to its complex optical design, including Super UD Ultra Low Dispersion and UD lens elements, both longitudinal and lateral CA are minimized. You’ll rarely see purple or green fringing around high-contrast edges, which is a huge win, especially in demanding situations like shooting backlit subjects.
• Flare: Canon’s Air Sphere Coating ASC and Fluorine coating play a significant role here. Flare is managed exceptionally well, even when shooting directly into or very close to strong light sources. You might see a very minor ghosting in extreme situations, but it’s generally far less problematic than with many other telephoto lenses. This allows for greater creative freedom, knowing your lens won’t betray you with distracting internal reflections.

Bokeh and Subject Separation

For a telephoto lens, especially one used for wildlife and sports, pleasing background blur bokeh is often just as important as sharpness.

• Bokeh Quality: While the variable aperture isn’t as wide as an f/2.8 prime, the 9-blade circular diaphragm still produces a surprisingly smooth and pleasing bokeh, especially at longer focal lengths 300mm-500mm and closer focusing distances. Out-of-focus highlights are generally round and free of harsh edges.
• Subject Isolation: At 500mm, even at f/7.1, the compression and subject isolation are excellent due to the long focal length. You can effectively blur out busy backgrounds, making your subject pop. This is a crucial advantage for creating impactful images where the viewer’s eye is drawn directly to the subject.

Autofocus Performance: Speed and Accuracy

When your subject is moving at 60 mph or taking flight unexpectedly, your autofocus system needs to be a mind-reader.

The Canon RF 100-500mm f/4.5-7.1L IS USM shines bright in this critical area, thanks to its advanced USM technology.

Dual Nano USM System

Canon has equipped this lens with its cutting-edge Dual Nano USM Ultrasonic Motor system. This isn’t just one motor, but two, working in concert to drive different lens groups.

• Lightning-Fast Acquisition: The result is blazing-fast autofocus acquisition. Whether you’re tracking a bird in flight, a race car, or a sprinting athlete, the lens locks onto subjects almost instantaneously. This speed is a must for capturing decisive moments that might otherwise be missed.
• Near-Silent Operation: The Nano USM technology also ensures virtually silent autofocus. This is a massive benefit for videographers who don’t want motor noise picked up by their microphones, and also for wildlife photographers who need to remain discreet to avoid spooking their subjects.
• Smooth and Consistent Tracking: Paired with Canon’s R-series cameras like the EOS R5 or R6, the lens provides exceptionally smooth and tenacious continuous autofocus AI Servo. It holds onto subjects with remarkable consistency, even when they move erratically or rapidly across the frame. This reliability translates directly into a higher keeper rate for fast-action photography.

Focusing Limits and Control Ring

Beyond raw speed, the lens offers features that enhance focusing precision and user control. Sprinly Meal Delivery Service Review

• Focusing Distance Limiter: A built-in focusing distance limiter switch offers two settings: “Full” 0.9m to infinity and “3m to infinity.” Using the “3m to infinity” setting can significantly speed up autofocus performance in situations where you know your subject will be further away, preventing the lens from hunting through its closest focusing range unnecessarily. This is a simple but effective tool for optimizing performance in specific scenarios.
• Control Ring: Like other RF lenses, the 100-500mm features a customizable control ring. This tactile ring can be assigned to various functions, such as ISO, aperture, exposure compensation, or even focusing fine-tuning. This adds a layer of intuitive control, allowing photographers to adjust settings without taking their eye from the viewfinder. For instance, assigning it to exposure compensation allows for quick adjustments to brightness, which can be critical when light conditions change rapidly during an action sequence.

Image Stabilization Effectiveness

Handholding a telephoto lens, especially one reaching 500mm, is a recipe for blurry images without robust image stabilization.

The Canon RF 100-500mm f/4.5-7.1L IS USM comes equipped with a highly effective optical image stabilizer that works wonders.

5-Stop Optical IS

Canon rates the built-in optical image stabilization system at an impressive 5 stops of correction.

• Real-World Benefit: What does 5 stops mean in practice? It means you can potentially handhold the lens and still achieve sharp images at shutter speeds up to 32 times slower than you could without stabilization. For instance, at 500mm, where the rule of thumb for handholding without stabilization is often 1/500s or faster, you could theoretically get sharp shots at 1/15s or even 1/10s. While real-world results can vary depending on your stability, achieving sharp images at 1/60s or 1/100s at 500mm is entirely feasible, significantly increasing your shooting flexibility in dim light or when slower shutter speeds are desired for creative effects like blurring motion.
• Versatility in Different Conditions: This level of stabilization is invaluable for various shooting scenarios, from low-light wildlife photography where high ISOs are undesirable, to shooting sports in less-than-ideal lighting, or simply reducing fatigue during long shooting sessions.

Coordinated IS with In-Body IS IBIS

For Canon EOS R bodies featuring In-Body Image Stabilization IBIS, such as the EOS R5 and R6, the RF 100-500mm leverages a coordinated control IS system.

• Enhanced Correction: When combined with IBIS, the lens’s optical IS and the camera’s IBIS work together, providing even greater stability. This synergistic effect can push the effective stabilization up to 6 stops on compatible bodies.
• Smoother Video: This coordinated stabilization is particularly beneficial for videographers, resulting in remarkably smooth handheld video footage, even at extended telephoto focal lengths. This reduces the need for heavy gimbals or tripods in many situations, offering greater spontaneity.
• IS Modes: The lens also offers different IS modes:
  • Mode 1: General purpose, for static subjects.
  • Mode 2: Panning, for tracking horizontal or vertical movement while blurring the background.
  • Mode 3: Designed for erratic movement, stabilizing only during the exposure, making it ideal for unpredictable subjects like birds in flight. Switching between these modes allows you to optimize stabilization for the specific type of motion you’re capturing.

Build Quality and Ergonomics

An L-series lens isn’t just about optical prowess. Nikon Nikkor Z 20Mm F18 S Review

It’s also about a robust, reliable, and ergonomic design that can withstand the rigors of professional use.

The Canon RF 100-500mm f/4.5-7.1L IS USM embodies this philosophy.

L-Series Construction and Weather Sealing

Canon’s “L” designation signifies a commitment to superior build quality, and this lens doesn’t disappoint.

• Durable Materials: The lens features a robust, high-quality plastic and metal construction that feels substantial and durable in hand. It’s built to withstand the demands of professional assignments in diverse environments.

Size, Weight, and Portability

Despite its impressive reach, the RF 100-500mm manages to strike a commendable balance between telephoto capability and relative portability.

• Compact Design: When fully retracted to 100mm, the lens is surprisingly compact for its focal range, measuring approximately 7.83 inches 199mm in length. This makes it easier to fit into camera bags compared to some of its larger DSLR counterparts or even some prime super-telephoto lenses.
• Manageable Weight: Weighing in at approximately 3 lbs 1370g, it’s not a featherweight, but it’s significantly lighter than many EF-mount super-telephoto zooms like the EF 100-400mm f/4.5-5.6L IS II USM which is 1570g and much lighter than a 600mm f/4 prime. This makes it more manageable for handheld shooting over extended periods and less burdensome for travel.
• Extendable Barrel: The lens features an extending barrel when zoomed from 100mm to 500mm. While some prefer internal zooming, this design contributes to its overall compactness when retracted. The zoom ring operates smoothly, with just the right amount of dampening.
• Zoom Torque Adjustment: A unique feature is the zoom torque adjustment ring, located near the lens mount. This allows users to adjust the stiffness of the zoom ring, from very loose for rapid zooming to very stiff to prevent zoom creep, which can be invaluable when shooting downwards or vertically.

Value and Target Audience

Investing in an L-series lens like the Canon RF 100-500mm f/4.5-7.1L IS USM is a significant financial commitment. Onanoff Buddyphones School Plus Review

Understanding its value proposition and who it’s designed for is crucial before making the plunge.

Price Point and Alternatives

At an average price of around $2,799.00, the RF 100-500mm sits firmly in the professional-grade lens category.

• Premium Pricing: This price point reflects its L-series status, advanced optical design, dual Nano USM motors, and comprehensive weather sealing. It’s comparable to Canon’s own RF 70-200mm f/2.8L IS USM.
• Comparison to EF Counterparts: Historically, EF super-telephoto zooms were similarly priced. The EF 100-400mm f/4.5-5.6L IS II USM, while a fantastic lens, was also in this range. The RF 100-500mm essentially offers more reach an additional 100mm in a slightly lighter, more compact package, with native RF mount advantages.
• Budget Alternatives: For those on a tighter budget, Canon offers the RF 600mm f/11 IS STM and RF 800mm f/11 IS STM as significantly more affordable around $799 and $999 respectively but much more specialized options. These are fixed-aperture, fixed-focal-length lenses with limitations in low light and versatility, but offer incredible reach for their price. Third-party options like the Sigma 150-600mm or Tamron 150-600mm around $899-$1199 could be adapted via an EF-EOS R adapter, but often come with compromises in autofocus speed, size, and seamless integration compared to a native RF lens.

Ideal User Profile

So, who is this lens perfect for?

• Wildlife Photographers: This is arguably the primary target audience. The 100-500mm range is incredibly versatile for capturing everything from large mammals to distant birds. The fast autofocus, superb sharpness, and effective stabilization are essential for capturing elusive and fast-moving wildlife.
• Sports Photographers: For outdoor sports where you need to track action from a distance, the 100-500mm excels. The rapid autofocus and continuous tracking capabilities make it ideal for capturing sharp images of athletes in motion. While indoor sports might demand a faster constant aperture like an f/2.8 zoom, for outdoor daytime events, this lens is a powerful tool.
• Aviation and Airshow Enthusiasts: The extended reach to 500mm is perfect for capturing aircraft in flight, whether at an airshow or simply planes passing overhead. The precise autofocus and image stabilization are critical for sharp shots of fast-moving subjects against the sky.
• Professional and Serious Enthusiasts: This lens is built for those who demand top-tier performance, reliability, and durability. It’s an investment for photographers who expect their gear to perform flawlessly in challenging situations and to deliver consistently high-quality results.

Considerations Before Buying

While excellent, there are a few points to consider:

• Variable Aperture: The f/4.5-7.1 variable aperture means the lens gets darker as you zoom in. This is a compromise to keep the lens relatively compact and lightweight. For low-light situations or when maximum background blur is needed, a constant f/2.8 zoom or a faster prime might be preferred.
• Extender Compatibility: The RF 100-500mm is not fully compatible with the RF 1.4x and 2x extenders at its widest focal lengths 100mm to roughly 300mm. The extenders can only be mounted when the lens is zoomed beyond approximately 300mm for the 1.4x or 400mm for the 2x. This is due to the rear element of the lens extending too far into the mount at shorter focal lengths, potentially interfering with the extender’s front element. While a minor inconvenience, it’s something to be aware of if you plan to frequently use extenders for even greater reach.

Tips for Maximizing Performance

Owning a high-performance lens like the Canon RF 100-500mm f/4.5-7.1L IS USM is one thing. getting the absolute most out of it is another. Benq Mobiuz Ex3415R Review

Here are some actionable tips to maximize its potential.

Optimizing Autofocus Settings

The sophisticated autofocus system of your Canon EOS R camera, paired with this lens, offers a plethora of settings that can significantly impact your keeper rate.

• AF Area Modes: Experiment with different AF Area modes. For static subjects or those moving predictably, Spot AF or 1-point AF can provide pinpoint accuracy. For fast-moving or erratic subjects, especially birds in flight or sports, Zone AF, Large Zone AF, or even Auto Selection AF with subject tracking can be more effective at keeping the subject within the active AF area.
• Case Settings AI Servo AF: Canon’s AI Servo AF offers “Case” settings e.g., Case 1 for versatile multi-purpose, Case 2 for continuing to track subjects, ignoring obstacles, Case 3 for instantly focusing on subjects suddenly entering AF points. Understanding and applying these to your shooting scenario is critical. For instance, Case 2 is often excellent for sports where other players might momentarily block your view.
• Servo AF Sensitivity: Adjust the tracking sensitivity and acceleration/deceleration tracking within your camera’s AF menu. If your subject moves erratically, increase sensitivity. If it moves smoothly, a lower sensitivity can prevent hunting.
• Focus Limiter Switch: Don’t forget the focus distance limiter switch on the lens itself. If you know your subjects will always be beyond 3 meters, switch it to “3m-∞” to prevent the lens from hunting through its close-focusing range, which can significantly speed up acquisition.

Leveraging Image Stabilization

The 5-stop or 6-stop with IBIS image stabilization is a powerful tool, but understanding when and how to use it is key.

• Shutter Speed Rule of Thumb: While IS is amazing, always aim for the fastest possible shutter speed for your subject’s motion to freeze action. Then, use IS to compensate for camera shake. For stationary subjects, the general rule of thumb for handholding without IS is 1/focal length in mm. With 5 stops of IS at 500mm, theoretically, you could shoot at 1/15s. In practice, try to stay above 1/100s for static subjects if possible, to guarantee sharpness.
• IS Modes:
  • Mode 1 Standard: Ideal for stationary subjects.
  • Mode 2 Panning: For tracking horizontally or vertically moving subjects. The IS system will only stabilize the axis perpendicular to your panning motion.
  • Mode 3 During Exposure Only: This mode is a must for erratic subjects like birds in flight. The IS only activates the moment you press the shutter, preventing the viewfinder image from jumping around as you compose, which can be disorienting. It provides maximum stability precisely when it matters most.

General Shooting Best Practices

These tips apply broadly to telephoto photography but are particularly relevant with this lens.

• Shoot in Burst Mode: For action photography, use your camera’s high-speed continuous shooting mode. This increases your chances of capturing the peak of the action, especially when combined with tenacious AF tracking.
• Maintain Stable Stance: Even with IS, a stable shooting stance improves results. Plant your feet, tuck your elbows in, and use a monopod or tripod whenever feasible, especially at 500mm.
• Light Conditions: Remember the variable aperture. In low light, you’ll need to increase your ISO more as you zoom in. Plan your shoots during optimal light golden hour, bright overcast days for the best results without pushing ISO too high.
• Lens Hood: Always use the included lens hood ET-101. It helps prevent stray light from causing flare and ghosts, and also offers a degree of physical protection to the front element.
• Cleanliness: Regularly clean the front and rear elements with a microfiber cloth and lens cleaning solution. Dust and smudges can degrade image quality, especially with telephoto lenses where they might be more apparent. The fluorine coating on the front element makes this easier.

RF System Advantages and Compatibility

The Canon RF 100-500mm f/4.5-7.1L IS USM isn’t just a great lens in isolation. Zebra Zsb Dp14 Review

Its true power is unlocked when paired with Canon’s cutting-edge EOS R mirrorless system.

This symbiotic relationship leverages unique features of the RF mount and camera bodies.

Short Flange Back Distance

The RF mount is characterized by its short flange back distance the distance between the lens mount and the camera’s sensor compared to the older EF mount.

• Optical Design Freedom: This shorter distance allows lens designers unprecedented freedom. For the 100-500mm, it enables a more compact optical formula, reducing the overall size and weight of the lens compared to what might have been possible with the EF mount for a similar focal range and performance level. This is a significant factor in making a 500mm capable lens relatively hand-holdable.
• Enhanced Performance: It also allows for larger rear lens elements closer to the sensor, which can lead to better light transmission to the corners, improving edge-to-edge sharpness and reducing optical aberrations. This is part of the reason for the exceptional image quality of RF lenses.

High-Speed Communication

The RF mount features a 12-pin electronic contact system, a substantial upgrade from the EF mount’s 8 pins.

• Faster Data Transfer: This increased number of contacts enables significantly higher bandwidth and faster communication between the lens and the camera body. For the 100-500mm, this translates to:
  • Rapid Autofocus Calculations: The camera can receive and process focus information from the lens at a much faster rate, contributing to the lightning-fast and highly accurate autofocus performance.
  • Advanced Image Stabilization: More precise data exchange allows for the seamless coordinated control IS when paired with IBIS-equipped bodies like the R5/R6, optimizing stabilization efficiency.
  • Real-Time Lens Correction: The camera can apply real-time optical corrections e.g., for distortion, vignetting, chromatic aberration more effectively, often rendering them almost imperceptible in the final image or RAW file.

Control Ring Integration

A signature feature of the RF lens line, the customizable control ring, is seamlessly integrated into the 100-500mm. Plume Superpod With Wi Fi 6 Review

• Customizable Functionality: This ring, positioned towards the front of the lens, can be assigned to control various exposure settings directly from the lens, such as:
  • Aperture: For quick adjustments to depth of field.
  • ISO: To manage light sensitivity.
  • Exposure Compensation: For fine-tuning brightness.
  • Shutter Speed: For controlling motion blur.
• Tactile Control: The control ring provides a tactile and intuitive way to change settings without taking your eye from the viewfinder, which is a major ergonomic advantage, especially when shooting dynamic subjects. It has a satisfying click mechanism which can be removed by Canon service for video users if desired.

Future-Proofing

Investing in a native RF lens like the 100-500mm means you’re buying into Canon’s current and future mirrorless ecosystem.

• Optimized Performance: Native RF lenses are designed from the ground up for the RF mount, meaning they deliver optimal performance, leveraging all the technological advancements of the system.
• No Adapters Needed: Unlike adapted EF lenses, you don’t need an EF-EOS R mount adapter, which simplifies your setup, potentially reduces points of failure, and keeps the overall system more compact.
• Newer Technology: RF lenses often incorporate newer optical designs and motor technologies that are not available in older EF counterparts, pushing the boundaries of image quality and performance.

Comparing to the EF 100-400mm f/4.5-5.6L IS II USM

For many Canon users, the EF 100-400mm f/4.5-5.6L IS II USM was the gold standard for telephoto zooms.

Now, with the RF 100-500mm f/4.5-7.1L IS USM, the question naturally arises: how do they compare?

Focal Length and Aperture

• RF 100-500mm: Offers an extended 500mm reach, giving you that extra 100mm on the long end, which can make a significant difference for distant subjects. However, it comes with a variable aperture of f/4.5-7.1, meaning it gets darker as you zoom in. At 400mm, its maximum aperture is f/6.3.
• EF 100-400mm: Tops out at 400mm. It has a variable aperture of f/4.5-5.6. At 400mm, its maximum aperture is f/5.6, which is a full stop brighter than the RF 100-500mm at 400mm f/6.3.
  • Verdict: The RF wins on maximum reach 500mm vs 400mm. The EF wins on aperture brightness f/5.6 vs f/6.3 at 400mm, which can be advantageous in lower light or for better background separation.

Image Quality

Both lenses are L-series and deliver superb image quality, but there are subtle differences.

• Sharpness: Both lenses are incredibly sharp, particularly in the center. Many reviewers and users find the RF 100-500mm to be slightly sharper at its shared focal lengths 100-400mm, especially towards the edges and corners, and it maintains excellent sharpness all the way to 500mm.
• Chromatic Aberration & Flare: Both are well-controlled. The RF 100-500mm benefits from newer coatings like ASC and advanced optical designs, potentially giving it a slight edge in suppressing flare and CA, especially in very challenging backlit situations.
• Bokeh: The EF 100-400mm, being brighter at 400mm f/5.6 vs f/6.3, can produce slightly softer backgrounds at equivalent focal lengths. However, the RF 100-500mm at 500mm and f/7.1 can still achieve excellent subject isolation due to the increased focal length compression.
  • Verdict: The RF 100-500mm generally holds a slight edge in overall image quality, especially when considering its extended reach and consistent sharpness across the entire zoom range.

Autofocus Performance

This is an area where the RF system truly shines. Intel Nuc 11 Extreme Kit Beast Canyon Review

• RF 100-500mm: Features the Dual Nano USM system which is incredibly fast, silent, and offers superior tracking performance, especially when paired with the advanced AF systems of EOS R cameras e.g., R5, R6. The higher communication speed of the RF mount contributes to this.
• EF 100-400mm: Uses Canon’s traditional Ring USM. While very fast and reliable on EF bodies, it can’t quite match the near-instantaneous acquisition and tenacity of the Dual Nano USM on RF bodies. When adapted to an RF camera, it performs admirably, but typically not at the same peak level as a native RF lens.
  • Verdict: The RF 100-500mm has a clear advantage in autofocus speed and tracking capability, particularly when paired with native RF camera bodies.

Image Stabilization

• RF 100-500mm: Offers 5 stops of optical IS, which can increase to 6 stops with coordinated control IS on compatible R-series bodies R5/R6. Features Mode 1, 2, and 3.
• EF 100-400mm: Offers 4 stops of optical IS. Features Mode 1, 2, and 3.
  • Verdict: The RF 100-500mm offers superior image stabilization, especially when combined with IBIS-equipped R bodies.

Size, Weight, and Build

• RF 100-500mm: More compact when retracted 7.83 inches / 199mm and lighter 3 lbs / 1370g than its EF counterpart, despite offering more reach. It features an extending barrel and a zoom torque adjustment ring.
• EF 100-400mm: Slightly longer 7.6 inches / 193mm and heavier 3.46 lbs / 1570g. It also features an extending barrel.
  • Verdict: The RF 100-500mm is notably more compact and lighter, a significant advantage for portability and handheld shooting. Both have excellent L-series weather-sealed construction.

Extender Compatibility

• RF 100-500mm: Can only use the RF 1.4x and 2x extenders when zoomed beyond approximately 300mm/400mm respectively, due to the rear element design.
• EF 100-400mm: Fully compatible with EF 1.4x and 2x extenders across its entire focal range though aperture becomes very dark with the 2x extender.
  • Verdict: The EF 100-400mm offers greater versatility with extenders, a definite consideration if you rely on them frequently.

Conclusion

If you are fully invested in the Canon EOS R mirrorless system, the RF 100-500mm f/4.5-7.1L IS USM is the clear choice. Its superior autofocus, enhanced image stabilization, slightly better optical performance, and lighter, more compact form factor make it a modern marvel optimized for the RF mount. However, if you already own the EF 100-400mm f/4.5-5.6L IS II USM and are adapting it to an RF body, it remains an excellent lens, especially if the brighter aperture at 400mm or full extender compatibility is crucial for your workflow. The RF lens represents the future of Canon’s telephoto offerings for mirrorless.

Frequently Asked Questions

What is the Canon RF 100-500mm f/4.5-7.1L IS USM lens best for?

The Canon RF 100-500mm f/4.5-7.1L IS USM lens is best for wildlife photography, sports photography, aviation/airshow photography, and other outdoor telephoto applications where capturing distant subjects with speed, precision, and high image quality is paramount. Its versatile zoom range makes it ideal for capturing everything from large animals to small, fast-moving birds.

Is the Canon RF 100-500mm sharp?

Yes, the Canon RF 100-500mm f/4.5-7.1L IS USM is exceptionally sharp across its entire zoom range, even wide open. It delivers outstanding center sharpness and very good edge-to-edge performance, which is a hallmark of Canon’s L-series lenses.

Does the RF 100-500mm work with extenders?

Yes, the Canon RF 100-500mm f/4.5-7.1L IS USM works with Canon RF 1.4x and 2x extenders, but with a notable limitation: it can only be used with extenders when the lens is zoomed beyond approximately 300mm for the 1.4x or 400mm for the 2x due to the design of the rear element.

What is the maximum aperture of the RF 100-500mm at 500mm?

The maximum aperture of the Canon RF 100-500mm f/4.5-7.1L IS USM lens at 500mm is f/7.1. Zhongyi Mitakon Speedmaster 50Mm F095 Iii Review

Is the RF 100-500mm good for low light?

While the RF 100-500mm f/4.5-7.1L IS USM excels in many areas, its variable and relatively narrow maximum aperture f/4.5-7.1 makes it less ideal for very low-light conditions compared to lenses with a constant f/2.8 or wider aperture. You’ll likely need to increase ISO significantly in dim light.

How much does the Canon RF 100-500mm weigh?

The Canon RF 100-500mm f/4.5-7.1L IS USM weighs approximately 3 lbs 1370g, making it relatively lightweight for its focal range and class.

Is the Canon RF 100-500mm weather sealed?

Yes, the Canon RF 100-500mm f/4.5-7.1L IS USM features extensive dust and weather sealing, typical of L-series lenses, providing robust protection against the elements for outdoor shooting.

What is the minimum focusing distance of the RF 100-500mm?

The minimum focusing distance of the Canon RF 100-500mm f/4.5-7.1L IS USM is 0.9m 2.95 ft at 100mm, extending to 1.2m 3.94 ft at 500mm.

Does the RF 100-500mm have image stabilization?

Yes, the Canon RF 100-500mm f/4.5-7.1L IS USM features 5 stops of optical image stabilization IS, which can increase to 6 stops when paired with compatible Canon EOS R cameras featuring In-Body Image Stabilization IBIS. Monster Hunter Stories 2 Wings Of Ruin For Nintendo Switch Review

Is the autofocus silent on the RF 100-500mm?

Yes, the Canon RF 100-500mm f/4.5-7.1L IS USM uses a Dual Nano USM system, which provides incredibly fast and virtually silent autofocus operation, ideal for both stills and video.

Does the lens extend when zoomed?

Yes, the Canon RF 100-500mm f/4.5-7.1L IS USM features an extending barrel as you zoom from 100mm to 500mm.

Does the RF 100-500mm come with a lens hood and tripod collar?

Yes, the Canon RF 100-500mm f/4.5-7.1L IS USM comes with a dedicated lens hood ET-101 and a removable and rotatable tripod collar for balanced mounting.

What is the filter size for the RF 100-500mm?

The filter size for the Canon RF 100-500mm f/4.5-7.1L IS USM is 77mm.

Can I use the RF 100-500mm on an EF mount camera?

No, the Canon RF 100-500mm f/4.5-7.1L IS USM is a native RF mount lens and can only be used on Canon EOS R series mirrorless cameras. It cannot be directly mounted on EF or EF-S DSLR cameras. Smartmi Air Purifier P1 Review

How does the RF 100-500mm compare to the EF 100-400mm II?

The RF 100-500mm offers an additional 100mm of reach 500mm vs 400mm, superior autofocus performance Dual Nano USM vs Ring USM, better image stabilization up to 6 stops with IBIS vs 4 stops, and is slightly lighter and more compact.

The EF 100-400mm II has a slightly brighter maximum aperture at its telephoto end f/5.6 vs f/6.3 at 400mm and full extender compatibility across its range.

Is the RF 100-500mm good for bird photography?

Yes, the RF 100-500mm f/4.5-7.1L IS USM is excellent for bird photography, providing the necessary reach, fast autofocus for birds in flight, and superb sharpness to capture feather detail.

Does the RF 100-500mm have a focus limiter switch?

Yes, the Canon RF 100-500mm f/4.5-7.1L IS USM has a focus limiter switch with “Full” 0.9m to infinity and “3m to infinity” settings to optimize autofocus speed.

What are the IS modes available on the RF 100-500mm?

The RF 100-500mm f/4.5-7.1L IS USM offers three IS modes: Mode 1 standard, Mode 2 panning, and Mode 3 stabilizes only during exposure for erratic subjects. Apple Magsafe Battery Pack Review

Is the zoom ring adjustable on the RF 100-500mm?

Yes, the Canon RF 100-500mm f/4.5-7.1L IS USM has a zoom torque adjustment ring that allows you to customize the stiffness of the zoom action.

What is the benefit of the RF mount for this lens?

The RF mount’s short flange back distance and high-speed communication enable a more compact lens design, faster and more precise autofocus, and enhanced image stabilization through coordinated control with IBIS-equipped cameras.

Can the RF 100-500mm be used for portraits?

While possible, the RF 100-500mm f/4.5-7.1L IS USM is generally not the ideal lens for typical portrait photography due to its long focal length and relatively narrow maximum aperture, which make it less versatile for intimate portraits or achieving very shallow depth of field. It can be used for distant environmental portraits, though.

Does the RF 100-500mm have a customizable control ring?

Yes, like other RF lenses, the RF 100-500mm f/4.5-7.1L IS USM features a customizable control ring that can be assigned to various exposure settings like ISO, aperture, or exposure compensation.

What is the closest focusing distance for macro-like shots?

While not a dedicated macro lens, the closest focusing distance of 0.9m at 100mm and 1.2m at 500mm provides a maximum magnification ratio of 0.33x at 500mm, allowing for decent close-up shots of larger insects or flowers. Network Solutions Web Hosting Review

Is the RF 100-500mm heavier than the RF 70-200mm f/2.8L?

Yes, the RF 100-500mm f/4.5-7.1L IS USM 1370g is heavier than the RF 70-200mm f/2.8L IS USM 1070g, which is expected given its significantly longer maximum focal length.

Is the RF 100-500mm a good investment for hobbyists?

For serious hobbyists passionate about wildlife or sports photography, the RF 100-500mm f/4.5-7.1L IS USM is a significant but worthwhile investment due to its exceptional performance and versatility within those genres. For casual users, more affordable alternatives might suffice.

What type of autofocus motor does it use?

The Canon RF 100-500mm f/4.5-7.1L IS USM uses a Dual Nano USM Ultrasonic Motor for its autofocus system.

Does the lens have focus breathing?

Like most lenses, the RF 100-500mm f/4.5-7.1L IS USM exhibits some focus breathing, where the focal length slightly changes as you rack focus. This is typically more noticeable in video work but is generally well-controlled for a zoom lens of this type.

What is the benefit of the Fluorine coating?

The Fluorine coating on the front element of the RF 100-500mm f/4.5-7.1L IS USM helps repel oil, water, and dust, making the lens surface easier to clean and maintain. Ikea Symfonisk Picture Frame With Wi Fi Speaker Review

Does the aperture change smoothly when zooming?

Yes, the aperture smoothly adjusts as you zoom with the RF 100-500mm f/4.5-7.1L IS USM.

While it’s a variable aperture lens, the change is gradual and electronically controlled by the camera.

Is it necessary to use a monopod or tripod with this lens?

While the 5-stop or 6-stop with IBIS image stabilization makes handheld shooting very feasible, using a monopod or tripod is highly recommended for extended shooting sessions, achieving maximum sharpness, or when shooting at slower shutter speeds, especially at the 500mm end.

How does its portability compare to prime super-telephoto lenses?

The RF 100-500mm f/4.5-7.1L IS USM is significantly more compact and lighter than professional prime super-telephoto lenses like a 400mm f/2.8 or 600mm f/4, making it far more portable for travel and handheld use.

What is the field of view range?

The field of view for the RF 100-500mm f/4.5-7.1L IS USM ranges from approximately 24° to 5° diagonal on a full-frame camera. Ecs Liva Q3 Plus Review

Does it have Super UD and UD lens elements?

Yes, the Canon RF 100-500mm f/4.5-7.1L IS USM incorporates Super UD and UD Ultra Low Dispersion lens elements in its optical design to effectively minimize chromatic aberrations and enhance image clarity.

Can I shoot video handheld with this lens?

Yes, thanks to its effective optical image stabilization and coordinated IS with IBIS-equipped bodies, the RF 100-500mm f/4.5-7.1L IS USM allows for remarkably stable handheld video footage, even at longer focal lengths.

Is this lens good for safari photography?

Yes, the RF 100-500mm f/4.5-7.1L IS USM is an excellent choice for safari photography, offering a versatile focal range to capture both larger animals at closer distances and more elusive wildlife from afar, with fast and reliable autofocus.

What kind of hood does it come with?

The lens comes with the Canon ET-101 lens hood, which is a bayonet-style hood designed to block stray light and provide physical protection.

Is it a good option for landscape photography?

How durable is the build quality?

The RF 100-500mm f/4.5-7.1L IS USM boasts L-series professional-grade build quality, featuring robust materials and extensive weather sealing, ensuring high durability for demanding use.

Will this lens be updated with a new version soon?

As a relatively recent addition to the RF lineup released in 2020, it is unlikely that Canon will release a new version of the RF 100-500mm f/4.5-7.1L IS USM in the near future. It remains a state-of-the-art lens in its category.

Does it have focus presets or a function button?

No, the Canon RF 100-500mm f/4.5-7.1L IS USM does not feature focus preset buttons or a dedicated function button on the lens barrel, unlike some larger professional super-telephoto primes.

What is the biggest advantage of this lens over adapted EF lenses?

The biggest advantage of the RF 100-500mm f/4.5-7.1L IS USM over adapted EF lenses is its native RF mount optimization, which translates to faster and more reliable autofocus, more effective coordinated image stabilization, and a more compact, lighter design specifically tailored for the EOS R mirrorless system.