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buze
8th of August 2005 (Mon), 06:52
Well it's more of a "wow that Canon L lens blows the rest off the planet" thread.

Anyway, I casualy hand-shot some with my four lens that can do 200mm, out of the window, everyone stopped at f8. This is not a scientific anal test thing with tripod and all, just point, focus, shoot.
+ Note that the Sigma is barely stopped down at f8, it's f6.3 to start with, so all the faster lens have the advantage. The Sigma I know is massively sharper around f11.
+ Note that the Takunar was manual focused, and I'm not entirely sure I hit the sweet infinity spot on that one so...
+ Oh, and the 70-300 is also in it's sweet spot, AND has IS to boot. The 70-300 I had to re-shoot a bit later (thus the different light) because it had obviously misfocused in the first batch (as usual)

So don't use this as a "Oh the 70-300 rocks" or "huh yuck it sucks" etc. Altho everything was over > 1/640s there can be some shake involved etc.

All was shot in JPEG with my normal program. I bumped the expo on the Canon 200L 1/3 stop since I know I have to with my focusing screen. Oh these are OF COURSE 100% crops.

http://oomz.net/200mm.jpg

AjP
8th of August 2005 (Mon), 07:11
I'm not surprised at all, my 50 1.4 bits all zoom lenses, of cause except L primes. Prime is Prime!

vjack
8th of August 2005 (Mon), 07:14
My Sigma 18-125 could certainly be sharper, but a few seconds with USM and it looks fine for this amateur. Sometimes I wonder if these expensive sharp lenses are really worth the $ just to avoid post-processing. I know there are other advantages, but it seems that sharpness is the most often discussed.

cmM
8th of August 2005 (Mon), 07:21
Sometimes I wonder if these expensive sharp lenses are really worth the $ just to avoid post-processing. I know there are other advantages, but it seems that sharpness is the most often discussed.
It's a kind of definition PhotoShop won't do for you.

Interesting comparisson, thank you.