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Old Dec 20, 2006, 5:03 PM   #1
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Is sharpness of the Canon EF 100-400 L f4.5-5.6 decreasing in time? - due to construction and due togliding elements easily being worn and therefore less exact.
When the lens is new, there are no problems.

Some people are claiming so! Are they right?


Do you have any experiences or knowledge about this isssue?
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Old Dec 21, 2006, 3:47 PM   #2
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Yup, mine is almost 3 yrs old and can barely take pictures.:lol:


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Old Dec 21, 2006, 9:44 PM   #3
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Is there a lens anywhere that do not have a 'gliding' element?

(you may not see it internally, but all zooms 'glide') :lol: :-) :G
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Old Mar 11, 2007, 5:34 PM   #4
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NHL wrote:
Quote:
Is there a lens anywhere that do not have a 'gliding' element?

(you may not see it internally, but all zooms 'glide') :lol: :-) :G
Rude answers wasn´t expected on this site, but after reading more answersfromsome persons inhere - nothing really surprise me.

Not only I have some hesitationin buyingthis lens.

At photodo.com you can read Optical qualityandVerdict:

http://www.photodo.com/topic_74.html





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