Metabones Speed Booster - Vignetting with Tele-Lenses

Started Jan 18, 2013 | Discussions thread
khaw
Regular MemberPosts: 399
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Re: Metabones Speed Booster - Vignetting with Tele-Lenses
In reply to khaw, Feb 9, 2013

So, I finally got a Leica Vario-Elmarit-R 1:2.8-4.5/28-90 ASPH.

On the NEX-7 with Firmware Version 1.02, this lens didn't show vignetting to my eyes at any focal length or aperture.  However, it has some lens distortion and and shows chromatic aberration predominantly in the corners and especially for a wide open aperture. The chromatic aberration was most noticeable for 28 mm focal length and f/2.8

The first image shows the OOC JPG for 28 mm FL and f/2.8, no post processing.

This image is derived from the RAW file and corrected for lens distortion and chromatic aberration.

These two images should give us a baseline we can compare against when the adapter is replaced with the Metabones Speed Booster (MSB).

It is also worth noting that the lens can be focused at 90 mm FL, then FL changed to 28 mm and the lens is still in focus.

With best regards, K-H.

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