What you can do is encode the lens yourself. I did it with my Older non encoded lenses. I think there may even be a kit out there for DIY 6 bit lens encoding :)
Thanks Jorge and Aquilan, I knew there would be the technical expertise here. It all makes sense to me now. I will work some more with both the Leica and Sony bodies with the wider Zeiss lenses (both 28 and 21) It may be I either have to go back to film or step up to Leica 6 bit linked glass - there goes the summer travel budget! Thank you again!!!
There is something, which is called sensor stack issue. Sony uses quite thick layers over sensor, much thicker than Leica in their M240 model. When ray of light hits sensor outer layers with different angle than 90 deg, the ray is being shifted. Different wave lengths are being shifted differently. It results with purple fringing on sensor via sensor stack. Despite correction with Leica software, Leica has used one of most thinner sensor stack. It helps to pull purple fingering down.
There is a company called Kolari Vision, which is specialized in IR-conversion of camera sensors. Aside their main activity, they prepared special procedure to replace sensor stack for A7 (mk1), A7R and A7S owners. This reduces the thickness of sensor stack and improves corner performance with film-optimized lenses. The results aren't highly spectacular but I still believe it is worth it to convert own camera, aside You loose only Sony warranty. I am going to send my A7 to KolariVision within next two months. I may provide some photos after conversion but You may Google some images provided with other customers of KolariVision.
I am very grateful to Hiepphotog (ZeissImages Friend), who shared with me the information about KolariVision and their special service to A7/A7R/A7S users.
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http://www.matchtechnical.com/Pages/coderkit.aspx
There is a company called Kolari Vision, which is specialized in IR-conversion of camera sensors. Aside their main activity, they prepared special procedure to replace sensor stack for A7 (mk1), A7R and A7S owners. This reduces the thickness of sensor stack and improves corner performance with film-optimized lenses. The results aren't highly spectacular but I still believe it is worth it to convert own camera, aside You loose only Sony warranty. I am going to send my A7 to KolariVision within next two months. I may provide some photos after conversion but You may Google some images provided with other customers of KolariVision.
I am very grateful to Hiepphotog (ZeissImages Friend), who shared with me the information about KolariVision and their special service to A7/A7R/A7S users.