Reviews and Problems with Canon EF 100-400mm f/4.5-5.6L IS USM
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Value for money 6
Overall quality 8
Not my favorite
2 December 2011
Conclusion: As much as other reviewers seem to love this lens, I have never been happy with the sharpness. Most people will likely not take issue, but I am very critical in this area. I love, love love my 70-200 2.8 ISL II. It is one of the best non prime lenses that I have ever used. Compared to that lens, the images from the 100-400 do not even rate. I would rather use a 1.4 or 2x converter with the 70-200 than use this lens. Even the 70-200 f4L IS is preferable.
Pros: solid construction
Cons: not as sharp as it should be, heavy, push/ pull zoom is annoying
Conclusion: I purchased the 100-400 primarily to shoot soccer and surfing and though very happy with the range the lens allows me I have to say I'm a bit flummoxed by the erratic quality of the images. I use a 7D manually and find that when shooting action in good light at anything less than 7.1 the sharpness of the images is less than desirable.
Really wanted to like this lens but too many flaws
Gadget Photo, Canon
31 March 2011
Conclusion: I studied many reviews on this lens and waited over a year before finally purchasing it online. This was the first L series lens I've owned, although I had tried others before. I knew the 100-400 has some limitations, but I really thought it would work for me. I usually shoot with a crop format 40D, and wanted this mostly for general wildlife use. Sometimes on a tripod, often not.
Conclusion: Purchase Date from Adorama 5/27/08 .... Returned to Canon Irvine, Ca along with 40D Eos for svg on or about DEC2, 2008 for focus problems noted above but no improvement noted ... Still prone to slow and inaccurate focus. On occasion recently lens would not focus ... period. I got a bad copy ... good luck with yours.
Pros: Price ... Fairly sharp at mid ranges.
Cons: Slow AF ... Focus inaccurate especially in chilly WX or low contrast subject matter... Dust inside front elements ... has play in camera mounting
Summary: The major problem is too soft between 300-400 mm, especially when aperture is <11. The performance is slightly improved when reducing aperture to 16 or 22. However, it is still too soft to be acceptable.
Pros: Easily Interchangeable, Quick Focus, Strong Construction
Summary: This bulky, heavyweight lens is not to hands photo. Poor focus at full tele. Performs poor in low light conditions. You can do the same job with cheaper and lightweighter lens. Almost impossible to make good photos of small things at full tele. Remember that with cropped sensor its focal lengh increase by 1.6 factor.
Pros: Quick Focus
Cons: Blurry Focus, Hard to bear, Heavy, Weak Casing
Summary: This lens is starting to show its age, particularly when put side by side with Nikon's 200-400mm f4. In close to 4 years of use, it grew to become the lens I used the least, mainly due to inconsistent results unless stopped down, barrel creep (irrespective of what some owners say, this problem has not been overcome) and fragility compared to any other L Series lens I've ever owned.
Summary: A great lens for wildlife in motion. Panning is dependable. IS needs updating to most recent version. Not a sharp as 400f/4.0 but heavier and more expensive. Have been disappointed as mine has been in for major repair twice.
Pros: Consistent Output, Easily Interchangeable, Easy To Clean
Cons: Heavy, Not sturdy - two breakdow, Trombone zoom is awkward, Weak Casing
Summary: I use this lens for beach and nature shots. the f-stop is what really hinders this lens from being a truly cool lens. I have allot of trouble shooting with this lens hand held, it is fairly heavy but still doable. I get blurs and residual edge glare when extended to 400mm. With a tri pod and the right light it is unbeatable quality but beware. A hand held shot will result in less than perfect clarity.
Pros: Durable, Easily Interchangeable, Easy To Clean, Rugged, Strong Construction