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Old Apr 1, 2005, 11:17 AM   #1
Join Date: Feb 2004
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I Think Not! Drebel wCanon 100-400 L IS +Canon TC1.4 @ 400mm-Tv mode-400 shutter-f11-AWB-Manual Focus! Manfrotto Monopod-PSCS Levels + USM(200,1.3,0) and cropped 100%!! Love this Lens!!!


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All Canon Eq. DRebel-Grip \ 18-55 f3.5-4.5 \ 50 f1.4 \ 100 f2.8 Macro \ 17-40 f4.0L \70-200 f4.0L \ 100-400 f4.5-5.6L IS \ 1.4TCII

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Old Apr 1, 2005, 12:41 PM   #2
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The 100-400 is generally considered to have quality problems. The one that I have is clearly sharper zoomed back just a touch from 400mm. I know others that have the same problem. Too many of them are fairly soft all over (i.e. should never have been shipped)

But it is still a great lens, and I like it a lot. Be happy you got a good one.


ps. I want to add that I can easily sharpen my pictures from it so that the quality is very good. I'm not complaining about the end result (after editing) I'm thinking of the out-of-camera picture, which is clearly a touch sharper if I back out the zoom a bit.
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Old Apr 2, 2005, 6:41 AM   #3
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This lens has been my work horse for over a year now and I think it is really
good. Originally I used it with my Drebel, and now with my 20D I am
really pleased with it. At f/7.1 to f/11 @ 400 mm, my usual conversion sharpenning
is 0.5 radius, 75-100% and depending on subject, followed by a 0.2 radius,
in the same range. And quite often, with really good light, I find I only need
the 0.2 step to get the really fine detail. At f/5.6, the numbers are bumped
up by about 50%. From this, it would appear to me that most of the
sharpenning is to overcome the AA filter in the 20D.
So overall, I think I have a pretty good copy.
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