Reviews and Problems with Canon EF 100-400mm f/4.5-5.6L IS USM
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Value for money 10
Overall quality 8
Great Lens, Know the Limits
1 week ago
Conclusion: I purchased this lens as I needed to give myself a bit more reach than my 70-200 could offer, even with the 1.4 extender. The versatility with the lens is great. The 100-400 range is perfect for photographing airplanes, wildlife, sports, etc. The images are sharp up until about 300mm and then there is a slight drop off in sharpness as you go beyond 300. The focusing at times can be a bit slow, which can be tough if you are trying to lock in on a moving subject.
Excerpt: The push/pull mechanism for zooming takes a little getting used to but is smooth once you get a feel for the correct tension. I use this for both wildlife photography and to capture my daughter in track.
Excerpt: I already had a Canon 70-300 lens, but I wanted something longer. Mixing the 100-400 with a 2X Canon extender is working well for me, especially for shots of migratory Sandhill Cranes in eastern Arizona.<br />The combination of lens and extender definitely makes it a heavy unit, and having the tripod mount on the lens helps steady the shoot (as does the image stabilizer feature).
Pros: Consistent Output, Durable, Fast / accurate auto-focus, Rugged, Strong Construction
Excerpt: The wife wanted a better lens than the kit lens, and I quickly recommended this lens to her, figuring I could also use it to shoot sports with it. I haven't tried it yet, but the wife gives it two thumbs up. She uses it for her bird watching, and it proved its worth the first time out, as she returned with shots clearly superior to anything she had taken earlier. It's a little heavy for her, but I think she'll be fine once she gets used to it.
Pros: Durable, Easily Interchangeable, Fast / accurate auto-focus, Rugged, Strong Construction
Excerpt: While I haven't had the lens long enough to really review the quality of the optics, I can offer first impressions. <br />The lens is big and it's heavy (especially with the lens hood attached). I intend to use the lens in low-light situations at maximum focal length (mostly). If you add the Canon 2x extender it makes the lens even longer (and heavier). Because of my intended use, I will definitely have to use a tripod.
Excerpt: I've used this lens for several years now. There appears to be a variance in sharpness depending on the copy of the lens; I unfortunately have one that tends to be a bit soft at 400mm (even at f/8, in bright light, on a tripod). Calibration revealed a moderate degree of front-focus, and while microadjusting the lens did sharpen it up a bit, I still find more lens blur than I would like in areas that should be focused.
Excerpt: I had my last 100-400 for about 12 years. I used it constantly in some of the worst conditions possible. Besides regular maintenance the lens never stopped. I only replaced it due to an accident where it took a dip in the ocean.