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Next PZ lens test report: Sigma AF 28mm f/1.8 EX DG
#4
[quote name='Frank' timestamp='1341665208' post='19351']

The MTF chart looks much better than that in Lenstip. Does it reflect sample variance of Sigma, or mean Lenstip gets a bad copy?

[/quote]



Honestly: no idea. There are just too many variables, and of course we have no insight on the lenstip testing except the info they give on their web site. They decided to use a very different testing approach with no sharpening at all and that, as well as sample variation, might be the reason for their very different results. IN this and a few other cases, too.



-- Markus
Editor
opticallimits.com

  


Messages In This Thread
Next PZ lens test report: Sigma AF 28mm f/1.8 EX DG - by frank - 07-07-2012, 12:46 PM
Next PZ lens test report: Sigma AF 28mm f/1.8 EX DG - by mst - 07-08-2012, 07:48 AM
Next PZ lens test report: Sigma AF 28mm f/1.8 EX DG - by Yakim - 07-08-2012, 12:30 PM

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