03-13-2012, 10:56 AM
[quote name='Klaus' timestamp='1331220987' post='16484']
...
However, the NEX 7 sensor characteristic introduces a point of uncertainty to the tests so I'm not confortable to publish this.
Frankly, I'm a little lost how to proceed on Sony Alpha APS-C. The 24mp sensor is flawed IMHO and the old A700 is fairly old.
[/quote]
Could it be the thickness of the filter in front of the sensor? Check [url="http://blogs.zeiss.com/photo/en/wp-content/uploads/2011/12/en_CLB41_Nasse_LensNames_Distagon.pdf"]Nasses (Zeiss Oberkochen) recent publication on Distagons and Biogons[/url], where he compares the Biogon 2.8/21mm on the Leica (thin filter) and on another camera (thicker filter). The MTFs are quite different ... see page 12 of the publication cited above.
Greez, Stephan
http://www.artaphot.ch
...
However, the NEX 7 sensor characteristic introduces a point of uncertainty to the tests so I'm not confortable to publish this.
Frankly, I'm a little lost how to proceed on Sony Alpha APS-C. The 24mp sensor is flawed IMHO and the old A700 is fairly old.
[/quote]
Could it be the thickness of the filter in front of the sensor? Check [url="http://blogs.zeiss.com/photo/en/wp-content/uploads/2011/12/en_CLB41_Nasse_LensNames_Distagon.pdf"]Nasses (Zeiss Oberkochen) recent publication on Distagons and Biogons[/url], where he compares the Biogon 2.8/21mm on the Leica (thin filter) and on another camera (thicker filter). The MTFs are quite different ... see page 12 of the publication cited above.
Greez, Stephan
http://www.artaphot.ch