Canon L = Lousy?

Started Jul 25, 2010 | Discussions thread
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Sonylover1
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Canon L = Lousy?
Jul 25, 2010

Hi

A question and a suggestion for dpreview lens tests (and all the other like photozone and slrgear):

What is it with Canon L lenses? How come they are so inconsistent between samples? Bought a 24-105L. Tested against 50/1,8, 17-85, 100 Macro on 7D.

I was amazed to see the 50/1,8 killing the 24-105. And was perplexed when my 100 Macro lost against the 105. Then...

Sample 1:
4,0 8,0
Sharpness:
24 mm Mushy Sharp
50 mm Mushy Good
105 mm Good Stellar!

Fokus:
24 mm OK
50 mm Backfokus by 8
105 mm Perfect
On the midrange it was impossible to get fokus in the pictures.

Sample 2:
4,0 8,0
Sharpness:
24 mm Sharp Good
50 mm Good Good
105 mm Sharp Good

Fokus:
24 mm Perfect
50 mm Perfect
105 mm Perfect

What should I do. Get a lense that shines in one aspect and sucks in the other. Cant I expect more from Canon??
My companion have Nikon and there seems to be less variation. I dont know.

Suggestions for lens tests.

Take 10(!) samples and test them for consistency. A big variation should render a lower rating. Perhaps Canon then sharpen up the quality check.

We ordinary people cant spend all the money it takes to calibrate 1000-2000$ lenses

Tired!
--
Mike the Viking

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