Canon RF 400mm F2.8L IS USM is a Fixed aperture Auto Focus (AF) Super Telephoto Prime
lens with Optical Image stabilization and 35mm FF max sensor coverage, and it is designed to be used with RF Mount
What type of photography is the Canon RF 400mm F2.8L IS USM lens good for?
The type of photography that you are planning to use the Canon RF 400mm F2.8L IS USM is an important decision factor. Here we have evaluated its suitability to various photography scenarios:
Canon RF 400mm F2.8L IS USM is a member of Canon's RF L series of lenses. Below you can see the latest lenses in this series.
RF L Series Lenses in Canon RF Mount
Reasons to Buy Canon RF 400mm F2.8L IS USM Lens
Here we've included a summary of the advantages and disadvantages of the Canon RF 400mm F2.8L IS USM lens in a list form to help you determine whether it offers the features you need.
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| Optical Image Stabilization (up to 5.5 stops)
| Focus Range Limiter
| Focus Hold Button
| Compatible with Canon Teleconverters
| Hood supplied
| Tripod Collar
| Full-time Manual Focusing
| Focus Distance Limiter
| Covers Full-Frame Sensor
| 9 Diaphragm Blades for Smooth Bokeh
| 400mm reach great for Wildlife Photography
Buy Canon RF 400mm F2.8L IS USM from Amazon or B&H PHOTO
Canon RF 400mm F2.8L IS USM is compatible with cameras that have a Canon RF lens mount. Some of the latest released cameras that are compatible with the Canon RF lenses are Canon R100, Canon R8 and Canon R50.
Canon R100 with the Canon RF 400mm F2.8L IS USM Lens
Canon R8 with the Canon RF 400mm F2.8L IS USM Lens
Canon R50 with the Canon RF 400mm F2.8L IS USM Lens
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Size, Weight and Filter Thread
Size and weight is a very important decision factor when searching for your next lens. Canon RF 400mm F2.8L IS USM has a maximum diameter of 168mm and total length of 367mm. It weighs 2890g / 101.9 oz.
Below you can find a scaled side-by-side image of Canon RF 400mm F2.8L IS USM and Canon RF 100-500mm F4.5-7.1L (Canon RF mount) to get a better idea of how their sizes compare in real life. Check the detailed comparison of these two lenses here.
Canon RF 400mm F2.8L IS USM has a Drop-in type filter holder with a filter thread of 52mm.
Canon RF 400mm F2.8L IS USM has a fixed focal length of 400mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides an 35mm (FF) equivalent of 640mm.
Canon RF 400mm F2.8L IS USM is compatible with the Teleconverters below. With the use of these TC/extenders, you can find how the total focal reach and effective aperture of your Canon RF 400mm F2.8L IS USM changes below:
Canon RF 400mm F2.8L IS USM Focal Range and Aperture Change with Teleconverter
The Canon RF 400mm F2.8L IS USM is a weather-sealed lens, which provides extra protection to prevent water and dust get inside the lens and camera body under light rain, snow and wind. In order to have effective protection, you have to pair the Canon RF 400mm F2.8L IS USM with a weather-sealed camera body such as the Canon R8, Canon R6 II and Canon R7.
Optical Image Stabilization
The Canon RF 400mm F2.8L IS USM features an optical image stabilization system which helps to reduce the blur that occurs due to shaking during hand-held shooting. Canon RF 400mm F2.8L IS USM's stabilization system is effective up to 5.5 stops.
With a total length of 367mm and a weight of 2890g, the Canon RF 400mm F2.8L IS USM is a large lens. Fortunately, it comes with a tripod collar which you can use to attach the lens directly to a tripod or monopod instead of attaching the camera. This connection helps to better balance the lens/kit combination.
Maximum Magnification Ratio
Canon RF 400mm F2.8L IS USM has a Max Magnification Ratio of 0.17x and has a minimum focusing distance of 2.5m. 0.17x means that the max magnification ratio is very low and not suitable even for modest close-up shots.
Below are the 3 Super Telephoto Prime type Canon RF mount lens alternatives with highest max magnification ratios:
Canon RF 400mm F2.8L IS USM has a max aperture of F2.8 and a minimum aperture of F32.
Canon RF 400mm F2.8L IS USM's optical formula consists of 17 elements in 13 groups . Following special elements are used in this design:
- 1 Super UD
- 2 fluorite elements
- Super Spectra
- ASC coatings
Canon RF 400mm F2.8L IS USM comes with a removable lens hood which is handy to reduce lens flare and glare in your photos.
Canon RF 400mm F2.8L IS USM is available in White color.
Popular Comparisons of Canon RF 400mm F2.8L IS USM
Here are the eight most popular comparisons of the Canon RF 400mm F2.8L IS USM amongst Camera Decision readers.
Top Alternatives of Canon RF 400mm F2.8L IS USM Lens
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