Saturday, November 24, 2007

Lens comaprison test Canon EF 10-22 18-55 IS and 18-55 at 18mm f4.5



Andreas Helke posted a new topic:

I did choose f4.5 because that is the widest aperture of the 10-22 at 18mm. I did use focus bracketing to take care of proper focusing. With my test subject of a high contrast landscape I did not find any quality differences at all. In my crops I show the middle portion of the frame but I did not see noticable differences at the edges either.



The really big difference is the sharpening applied or not applied. If you want to see that you have to look at the 1600x1200 originals because flickr sharpenes all resized versions.



dpp with no sharpening and standart picture style

lens comparison f4.5 dpp sharpening none 10-22 18-55 IS 18-55



dpp sharpening setting 5

lens comparison f4.5 dpp sharpening 5 10-22 18-55 IS 18-55



comparison of no sharpening with setting 5 and 10

lens comparison f4.5 dpp sharpening 0 5 10 10-22 18-55 IS 18-55





I think that the 10 sharpening setting apllies too much sharpening.

You see the 10-22 on top 18-55 IS in the middle and the regular 10-22 kit lens on the bottom.



I am sure I will find some conditions or apertures where the 10-22 will beat the 18-55 lenses. It is just not as easy as I had thought.



I did use focus bracketing to take care of exact focus. Before I started doing this all my lens comparisons where screwed up by differences in focusing. I get 5 to 6 different focus adjustments in the space that the autofocus considers properly focused.

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