Reviews and Problems with Canon EF 400mm f/4.0 DO IS USM
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Great for hand held tele photos.
2 September 2014
Summary: I purchased this lens for bird and wildlife photography. I was looking for a lens that I could hand hold, and the 400DO fills the bill perfectly. It is light, maneuverable, and easy to use. The IS works well, and I personally do not find the F/4 aperture to be a drawback. If you want to leave the tripod at home, and shoot tele, this is your lens.
Excerpt: I use it primarily for wildlife, mostly birds. I have been using it primarily to follow 2 eagle nests paired with the 2x 111 extender to give me 800mm and autofocus. I also use it at short range, 12 feet +/- for hummingbirds.
Pros: Consistent Output, Durable, Rugged, Strong Construction
Excerpt: I've worked with this lens for about 6yrs now and it does not fail to deliver. Unlike most all of the other super-tele lenses, you will just carry this around with you like a walk around lens and it's out and ready to go. It gets used a lot because you don't think much about carrying it, it's that simple. Image quality on the 1Dx is outstanding and sharp. The only con I can see is the price went up since I bought mine.
Pros: always ready on my camera, Fast auto-focus, Lightweight, Superior build quality, Super-sharp images
Excerpt: In my opinion, this is a fantastic go-to lens for wildlife photography. Very lightweight and easily handheld, even for longer periods of time in the field. Most of the time, however, I have this lens mated to a 7D along with a 1.4x III attached to a pano-gimbal head/tripod combination. Outstanding reach for the money, and awesome, sharp results!
Pros: Fast auto-focus, great with 1.4 extender, Superior build quality, Super-sharp images, Very light in weight
Excerpt: I will be going on an African safari later this year. The luggage weight restriction is a major challenge for this trip. After doing quite a bit of research and evaluating the pros (lightweight and small for a super telephoto prime, relatively fast autofocus that's compatible with 1.4 III tube) and the cons (image quality and contrast) of this lens, I purchased it with reluctance and hesitation.
Pros: Consistent Output, Durable, Fast / accurate auto-focus, Rugged, Strong Construction
Excerpt: I use this lens for wildlife photography and as my review headline states this lens is portable and excellent. The automatic focus is fast and accurate. The images are sharp at f/4. I prefer to shot at f/5.6 or higher when possible. It is more forgiving and gives me a higher percentage of in focus images. I did my comparisons between the 400 f/4, and my 70-200 f/2.8L IS USM and 70-200 f/4L IS USM with the 1.4x EF III Teleconverter mounted to the 70-200's on my 5D MK lll.
Pros: Consistent Output, Fast / accurate auto-focus, Lightweight