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Wide lens comparison

By strawman
Following a debate on wide angle lenses I decided to do a quick back to back test, see modifications for the test shot. I know the light is bad but I thought the brick work would show detail.

The four squares you see are actual pixel size crops (500x500), one from the centre one from the edge of the frame. Both lenses set to their indication of 17mm. Both images pushed through DPP with no processing/sharpness etc adjustments. Both will sharpen more to give more detail.

In my view the lenses produce very equivalent results. Can you tell which is the Sigma or the Canon?

Your views?

Tags: Architecture Sigma 10-20 Canon 17-40 Wide lens test

Voters: TyChee, Krakman,

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riprap007 16 1.6k 37 England
27 Oct 2007 12:08AM
I'm assuming the one on the right is the canon, little in it as you say
paulreid 14 8 Germany
27 Oct 2007 8:20AM
The one on the right is sharper with more contrast imo.
kezeka 14 79 United States
27 Oct 2007 4:33PM
I would shoot at the right being the canon as well.
Nigel_95 Plus
14 262 2 United Kingdom
27 Oct 2007 7:27PM
I can't say which is which, but I prefer the results on the right. I have both the Sigma 10-20 and the Canon 17-40, and think they are both good.

strawman 17 22.2k 16 United Kingdom
27 Oct 2007 7:38PM
The lens on the right is the Sigma
ZenTog 19 7.9k 1 England
27 Oct 2007 7:52PM
the one on the left has slightly more detail, but not a lot of difference I concur.
but i have said before the sigma wide angle and macros are fine , even owned a 24mm sigma prime and a 180mm macro.
strawman 17 22.2k 16 United Kingdom
27 Oct 2007 7:59PM
LOL Paul the one on the left has least detail and is softest, as most have picked who commented Smile
ZenTog 19 7.9k 1 England
28 Oct 2007 8:23PM
my left or your left thats the probleIm I have when looking at somebody elses picture , the pic I am talking about is to my right hand , also viewing through a laptop probally isnt the best,
bring the two prints to focus and let us all have a gander
Krakman 14 3.6k Scotland
2 Nov 2007 2:17AM
i know it's a test, but it works well as an image!

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