Why dpreview switched from 50/1.4 to 50/1.8 in latest Sony tests

Started Mar 17, 2012 | Discussions thread
tbcass
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Re: One more question
In reply to Xentrax, Mar 18, 2012

Xentrax wrote:

It's a pity that Sony does not have a good 50mm prime.

There is a flock of hair in the lower right corner on the Studio scene between a robot and a watch, and when compared with Nikkor 50/1.4G, it's a complete mess even at ISO 100. For me it also looks a little sharper on A580 than on A57.

Is it caused by lens or what? If by lens, then people compare lens performance and not camera ISO performance in this test.

This is usually the result of slight focusing differences. One of the flaws of these tests is the lens is not focused on exactly the same spot each time. Normally this isn't a problem but when blowing up the photo to 100% these little differences become visible.
--
Tom

Look at the picture, not the pixels

http://www.flickr.com/photos/63683676@N07/
http://www.flickr.com/photos/25301400@N00/

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