- EF mount; super telephoto lens
- Fluorite as well as Ultra-low Dispersion-glass; inner focusing; full-time primer focus
- 400mm focal length
- f/5.6 limit aperture
- Micro UltraSonic Motor (USM)
Product Description
This high-performance lens was written with portability as well as doing palliate in mind. One super UD-glass element, whose characteristics have been identical to fluorite, as well as the single UD-glass component outcome in pointy cinema from corner-to-corner. The lens additionally has the built-in metal cover as well as the detachable tripod mount…. More >>
Canon EF 400mm f/5.6L USM Super Telephoto Lens for Canon SLR Cameras

I have ordert this lens, and i am convinsed i have made the right choise.. I have read many reviews about this lens, and all what people said about it have come true.. Its very sharp and you don’t need to stop it down to get better results. Straight from aperture 5.6 it is razorsharp! Light and well build and the build in hood is splended!
Rating: 5 / 5
I love this lens the built construction the high quality it even feels like they put alot of work into this big baby.Its a beautiful cream white about 10 inches long and does get alittle heavy but its worth it.i tried it out inside and out you do need a tripod inside it requires alot of light very good colors and contrast i havent got to try it out that much yet but i will submit pictures when i do.Great Lens
Rating: 5 / 5
It’s hard to find as long a lens at a comparable price, but there is a “you get what you pay for” factor. Of all of my Canon lenses (I have seven), this is the softest and offers the least contrast. It performs best in bright light when you can stop it down to f/14 or better. I have used the 400mm lens with both the 1.4x and 2x Canon extenders (1.4 is better). It’s a comparatively slow lens. BUT the 400mm f/2.8 is over $5000 more! So you can see why “bang for your buck” means something. Also, this is a _much_ lighter weight lens than the faster Canon telephotos. Finally, it is not image stabilized, so you will likely want to a solid tripod or monopod.
On balance, if you don’t need the very finest optical quality, this lens is well-worth the price.
Rating: 4 / 5
My husband & I bought this lens for our son’s soccer games. We LOVE the quality of pictures. We are very happy with this product.
Rating: 5 / 5
No more itching to buy Canon EF 400mm f/5.6L USM Super Telephoto Lens. I’ve come to this conclusion after I decided to rent EF 400mm and compare it with my current combination: Canon EF 70-200mm f/2.8L IS USM Telephoto Zoom Lens plus Canon EF 2X II Extender Telephoto Accessory. While reading all reviews, I was convinced, that 400mm prime would be the best option for wildlife and birds photography, compare to 70-200mm plus EF 2X II Extender, because of degradation of quality of images, taken with extender, etc. From my point of view, the results for EF 400mm were very disappointing. On the other hand, while comparing prime lens with EF 70-200mm f/2.8L IS USM+EF 2X Extender, I realized that everything is working perfectly with EF 2X II Extender: auto focusing, IS, even colors appears to be better for this pair. Needless to say, that on top of it gives me more versatility. I am posting some of the images that, I think, will be helpful to make my point. No post-processing of these images except conversion from RAW. My camera was calibrated recently by Canon factory
Rating: 3 / 5