Sigma versus Zeiss?

Started Jun 5, 2012 | Discussions thread
dccdp
Regular MemberPosts: 308
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Re: Sigma versus Zeiss?
In reply to DJF77, Jun 5, 2012

DJF77 wrote:

If you had both & uploaded images on to your gorgoes 27inch iMac screen, you will certainly notice a difference in image quality; just as I do

Your gorgeous iMac screen is irrelevant for this matter. It has lower pixel density than an average laptop, and a resolution much, much lower than any photo taken with current cameras.

http://en.wikipedia.org/wiki/List_of_displays_by_pixel_density

Therefore, in terms of sharpness, you can't really make objective comparisons even on your beautiful expensive screen, unless you view the photo at 1:1 (which you can do on any screen, regardless of size)... And unless your screen is thoroughly calibrated (which is not that easy), testing the lens IQ on your beautiful iMac will be the same as doing it on any, much cheaper and smaller size IPS monitor.

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