Excerpt: I just received my lens a couple weeks ago and have not really had the opportunity to use it much. From what I can tell so far it takes quality images. The motor is loud but not something that bothers me. I bought it for landscape photos and for capturing images of ranch animals. I hope that it works out for both.
Excerpt: The lens is photographically great however the built quality / inner design is likely weak and seems to have flaws. I have purchased this lens 4 years ago from Adorama as downgrade for my f/2.8 IS mark one lens as it's way more portable and I don't shoot indoor sports nor weddings any more. I love the image quality, portability, IS and speed of focusing (non-IS version did not perform as good).
Pros: Consistent Output, Fast / accurate auto-focus, IS, Lightweight, Nice Bokeh
Excerpt: I had until now been using the kit 70-200mm zoom lens that came as part of my D-SLR camera package. Having bought the Canon L macro lens earlier this year and been blown away by it, I was all eager to get the L zoom lens too. I am pleased with the new zoom lens - colors are good, images are sharp - but am not blown away by it as I was with the macro lens.
Summary: I ordered this lens new from an online merchant recently and after taking it out to shoot for one day, I've found that it performs remarkably- when it performs. I am not rating the 70-200 F/4L IS in general, but rather the one that I received. I thought about not writing a review just so that the raving 5star reviews wouldn't be skewed but I thought this might be helpful for people who thought it might be too good to be true that nobody got a lemon.
Excerpt: The Canon 70-200mm f4L is a little over rated. Advertisers do what they are paid to do and give this lens high praise. What they don't tell you is the quality produces no more quality then other manufacturers of equal value. It has magnification wiggle at the high end that is only manageable once tripod mounted. My experience thus far has proven that f4 is not really fast enough for pre and post sunlight photos.
Summary: Like so many others before,I worried whether I could justify the expensive of buying this lens.I have a 500d,18-55 kit lens,f1.8,Sigma 70-300 and a 55-250IS(which was bought to compensate for the Sigma's lack of performance in low light).I must say that I have been very happy with the 55-250's perfomance but the call of an 'L' lens was attracting me.I reasoned that,if a lens costing under £200 could produce such great results how much better must they be with one costing...
Summary: Optically speaking this lens is second to none! However even while it is claimed to be of professional quality I have to disagree: It seems that the mechanical parts are not better than any cheap consumer grade lens. I happened to bang this lens against the railing on a ship while turning around. This resulted in a retaining ring inside the lens to break. As a result the lens became totally useless, which was rather annoying since it happened on a holiday trip.
Summary: My copy had a slight focusing issue, but hey... with so many great reviews/copies for this lens there's bound to be one that slips through the cracks. Amazon as usual were fantastic with support and they generated a return coupon for me immediately. I sent it back and was getting a replacement when I changed my mind and now went in for the slightly more expensive Canon EF 70-300 f/4-5.6L IS USM Lens instead.