Delivering high-performance for professional photographers as well as inheriting the optics of the EF 400mm f/2.8L IS III model, the RF400mm F2.8 L IS USM is the go-to choice to help capture superb shots of sports, wildlife and more. Its optical image stabilization system with up to 5.5 stops* of shake correction, including three IS operation modes, helps to deliver sharp results – whether hand-held or mounted on a monopod. For brilliantly clear results even in challenging situations, Super Spectra Coatings (SSC) and Air Sphere Coatings (ASC) help minimize ghosting and flare. The RF400mm F2.8 L IS USM is also compatible with both the RF 1.4x and 2x Extenders to get you even closer to the subject.
Some of the top features include:
High-performance, Wide-aperture 400mm f/2.8 Super-telephoto Lens, Exclusively for EOS R-series cameras:
Inheriting the optics of the EF 400mm f/2.8L IS III USM, the same high image quality is maintained in the RF400mm F2.8 L IS USM with outstanding sharpness and contrast, center to corner, even at maximum aperture. A combination of Fluorite and Super UD (Ultra-low Dispersion) glass is at the heart of this lens’s outstanding optical performance. At the widest aperture of f/2.8, chromatic aberration is significantly reduced, to achieve tack-sharp images with minimal color fringing. This means detailed results in any shooting condition, particularly in low light levels.
Optically Identical to EF 400mm f/2.8L IS III USM lens:
The latest EF version of the 400mm f/2.8L IS lens, introduced in late 2018, preserved the legendary sharpness of previous EF400mm f/2.8L lenses, but with a dramatic reduction in overall weight. The RF version, dedicated to EOS R-series cameras, preserves this advantage, providing outstanding handling for a super-tele lens with an f/2.8 maximum aperture. Numerous optical and mechanical steps combine for this supremely light weight, transforming the RF400mm F2.8L IS USM into a lens that’s equally at home in situations requiring mobility and portability — such as motorsports and wildlife — as it is fixed on home plate at a night baseball game. And, since it uses the same optical design as the EF version III lens, the same superb image quality can be expected.
Minimum Focusing Distance of 8.20 ft. / 2.5 m:
With a minimum focusing distance of approx. 8.2 ft./2.5m, the RF400mm F2.8 L IS USM helps you get close to your subjects. At its closest focus distance, users can fill the frame with a subject roughly the size of an adult’s extended hand, from wrist to fingertips.
Optical Image Stabilization with up to 5.5 Stops* of Shake Correction, Including Three IS Operation Modes:
The RF400mm F2.8 L IS USM features an Optical Image Stabilizer system that provides up to 5.5 stops* of shake correction, delivering consistent and sharp results. Whether hand-held or mounted on a monopod (or other devices allowing mobile positioning), the lens’s Image Stabilization can deliver clear image detail in low-light situations or at lower ISOs. This applies when capturing both stills and video, for stable shooting, and sharp final imagery. Three IS Operation Modes:
Three image stabilization modes provide shake-correction for outstanding results in a wide range of shooting situations. These include traditional stabilization, with the correction visible any time IS is active in the camera’s viewfinder (IS Mode 1); helping to correct camera shake when intentionally panning horizontally (or vertically), providing shake-correction perpendicular to the photographer’s panning movement (IS Mode 2); and stabilization that instantly goes into effect only when the shutter is released — no correction visible between shots, in the camera’s viewfinder (IS Mode 3).
Super Spectra Coating (SSC) and Air Sphere Coating (ASC) Helps Minimize Ghosting and Flare:
The RF400mm F2.8 L IS USM lens features Canon's Super Spectra Coating (SSC) that helps maintain overall image quality and color fidelity, as well as Air Sphere Coating (ASC), which significantly helps to reduce the occurrence of lens flare and ghosting. The RF400mm F2.8 L IS USM continues to deliver outstanding images and video, even at maximum aperture, in harsh back-lighting conditions.
Compatible with Canon RF 1.4x and 2x Extenders:
To help get you even closer to the subject, attach the compatible Extender RF 1.4x or Extender RF2x to the RF400mm F2.8 L IS USM. Expand effective telephoto power to 560mm at f/4 with the Extender RF 1.4x, or to effective 800mm at f/5.6 using the Extender RF2x. The extenders allow even more telephoto reach when it’s needed, yet allow the user to convert back to an f/2.8 lens for low-light situations by simply removing the extender.
Customizable Electronic Focus Ring, with Manual Focus Capability during SERVO AF:
The lens’s large manual focus ring is located directly on the lens barrel, and allows you to select from three different manual focus speed levels, to adjust the focus ring rotation to your desired preference. The “1” position on the M.Focus Speed switch provides the fastest sensitivity (a small amount of focus ring rotation provides significant focus change in the lens); settings 2 and 3 reduce this sensitivity, allowing for finer manual focus adjustments.. This can help whether you need a slow speed to switch between someone’s eyes in a distant profile, or a fast speed to dial in on different birds in a large, swiftly moving flock. Additionally, depending on camera settings, manual focus is still possible while AF is engaged, letting you fine tune focus adjustments to suit your shooting preferences.
9-blade Circular Aperture for Beautiful Bokeh:
Thanks to its 9-blade, circular aperture, the RF400mm F2.8 L IS USM is capable of gorgeous, evocative out-of-focus areas and soft backgrounds. With rounded rendering of background blur, the 9-blade circular aperture helps create intimacy and intensity in both photos and videos for impactful results.
Two Focus Presets Available — Instantly Return to One or Two Memorized Focus Distances:
Quickly select between one or two memorized focus distances, with focus presets. Especially useful for fixed-position sports photography, you can focus upon and memorize two separate focus distances. Then, with a simple twist of the playback ring, immediately jump back to one or the other. A sports photographer, for example, could easily pre-focus on home plate and 2nd base at a baseball game, with the ability to rapidly move focus back to either position with a slight turn of the playback ring on the lens barrel.
Dust - and Water-resistant Design, with Fluorine Coating on Front Element for Easy Cleaning:
Built to L series lens specifications, the RF400mm F2.8 L IS USM features a highly durable design for excellent performance even in inclement weather conditions. It delivers a dust- and water-resistant construction with seals around the mount, switches, rings and more. To help maintain a clean lens, even after multiple lens changes in sub-optimal conditions, the RF400mm F2.8 L IS USM has a specially designed fluorine coating on its front and rear surfaces. The coating helps to prevent water, oil and other surface residue like fingerprints from sticking to the lens, which facilitates quick and easy wiping, without the use of solvents
Main Unit Specs:
- Focal Length & Maximum Aperture: 400mm
- Minimum Aperture: 8.20 ft. / 2.5m
- Lens Construction: 17 elements in 13 groups
- Diagonal Angle of View: 06°10'
- Closest Focusing Distance: 2.79 ft./0.85m
- Aperture Control: 9
- Filter Size: Φ52 mm (Drop-in filter - Drop-in Screw-type Filter Holder 52 [WIII] included, with 52mm clear Protect Filter)
- Max. Diameter x Length:Approx. 6.4 in x 14.4 in. / 163mm x 367mm
- Weight: Approx. 6.37 lbs. (102 oz.) / 2890g
- Lens Cap, Lens Hood and Pouch: Lens hood
- Long: ET-155 (WIII) (Bundled)
- Short: ET-155B (Sold separately)
Included in the box:
- Canon RF 400mm f/2.8L IS USM Lens
- Canon Lens Cap
- Canon Lens Dust Cap RF
- Canon Drop-In Screw Filter Holder with Protector Filter
- Canon Lens Hood
- Canon Soft Lens Case
- Canon Lens Wide Strap B
Pricing is subject to change at any time, at our sole discretion. Please be aware that prices both rise and fall due to fluctuations, and we are offering you the best price we can at the time.
Due to the nature of the electronics industry, we cannot offer price protection credits once the item has been purchased.
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6th Ave collects sales tax on orders shipping to the state of New Jersey.
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Our goal is to make sure you are completely satisfied with your transaction. We offer the below return and refund terms to assure you the best services.
30-Day Return Policy
If dissatisfied with your purchase, you may return the products to 6th Ave Electronics (6ave.com) within 30 days of the delivery date. The products you want to return or exchange should meet the below conditions.
If all conditions mentioned below are not met, 6th Ave Electronics reserves the right to refuse the return.
- UPC codes and serial numbers must be intact or the return will be automatically refused.
- We reserve the right to refuse the return based on the condition of the returned merchandise.
- The products should be returned in their original unaltered box
- Returned products should include all items originally received by you, including free items and accessories, to obtain a full refund; In case you wish to keep any free items or accessories, their retail value will be deducted from the reimbursement total.
- Product to be returned should include all packing material, original box materials, inserts, manuals, cables, unfilled warranty, and rebate cards.
- Shipping and handling fees are non-refundable
- The refund amount is limited to the original purchase price
- Unboxed TVs, combos and monitors 37" or larger with unsealed original packaging
- Unboxed computers and computer software with unsealed original packaging
- Electronic software or downloads
- Unboxed consumable items such as CD, DVDs, ink cartridges, film, bulbs, etc.
- Any computers built, customized, or modified as per customer specifications
- Select special-order merchandise
- Nonreturnable items specifically mentioned on the website
- Submerged underwater equipment
- Unboxed or unwrapped educational tapes or books
Attn: Return Department
6th Ave Electronics
50 Atrium Dr.
Somerset, NJ 08873
Defective or Damaged Items
In case you receive a defective or damaged item, we will exchange for a replacement or refund.
In case of items missing or damaged in transit, you must claim them within three business days of receipt of merchandise.
How to Initiate Returns
In order to arrange a return/exchange, please contact us via phone 1-800-414-4012 or email us at email@example.com to obtain an RMA (Return Merchandise Authorization) number.
Shipping Products for Returns or Exchange
Please make sure you repack the product carefully. Place the factory box into a separate shipping box and include the RMA number underneath the return address.
Please do not affix shipping labels or write on the manufacturer’s package.
Please ship returns back to us with insured ground delivery. We are not responsible for lost or damaged returned packages.
We are not responsible for any consequential or incidental damage occurring due to the purchase or use of any merchandise.
Kindly factory reset or password unlock the electronics with user information before sending them back for return.
Refunds are applied to the payment method used at time of purchase 3-7 days after merchandise is received and inspected.
Refund amount is limited to the original purchase price and does not include shipping and handling fees, which are non-refundable.
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