Sigma 19mm without rear baffle and Sony A7

Started Jul 28, 2014 | Discussions thread
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pixee Regular Member • Posts: 410
Sigma 19mm without rear baffle and Sony A7
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I tested how Sigma 19mm f2.8 lens works with Sony A7 if the rear baffle is removed. It works bretty well! The Vignetting is less I thought. I think the angle of vie is some 21-23mm depending how much the picture is cropped.

In this capture after cropping the hard vignetting I got a picture with Sigma with resolution 5685 x 3790, 21,5 mb. Full frame is 6000 x 4000 24 mb.

Shot in Raw, developed with Lightroom 5.5 CC.

Here the Sigma is compared with Nikkor 20mm f3.5 with adapter.

Nikon 20mm f3.5 Ai - Sony A7

Sigma 19mm 2.8 without rear baffle - Sony A7

Sony Alpha a7
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