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24-90mm Focus Shift (Diglloyd)


agencal

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No, I don't think Leica has ever reported sales numbers, other than to say that sales exceed expectations.

 

Alfred Schopf reported in this 2014 interview that Leica makes about 1000 film cameras per year, of which about 60% are sold to Japan....

 

http://www.amateurphotographer.co.uk/latest/photo-news/leica-hails-new-beginning-in-historic-wetzlar-ceo-interview-part-two-5899

 

Jeff

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John, Godfrey

With respect to the "focus shift" found by Ming and Lloyd, as Godfrey has it, it wasn't focus shift, but an AF anomaly, which was fixed in firmware pretty quickly. 

I don't think either Ming or Lloyd ever checked it again or reported on the fix - I don't think they worked on it together, but they tested in the same manner (Lloyd first I think), and I could certainly reproduce the issue back then - but it always seemed to me that it was because the camera was focusing towards the front edge of the focusing square (which obviously changes as you zoom).

 

Whatever - past history, and as you have so thoroughly shown Godfrey it's not something we need to think about any more.

 

All the best

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John, Godfrey

With respect to the "focus shift" found by Ming and Lloyd, as Godfrey has it, it wasn't focus shift, but an AF anomaly, which was fixed in firmware pretty quickly. 

I don't think either Ming or Lloyd ever checked it again or reported on the fix - I don't think they worked on it together, but they tested in the same manner (Lloyd first I think), and I could certainly reproduce the issue back then - but it always seemed to me that it was because the camera was focusing towards the front edge of the focusing square (which obviously changes as you zoom).

 

Whatever - past history, and as you have so thoroughly shown Godfrey it's not something we need to think about any more.

 

All the best

Lloyd is reporting he is seeing the same issue with FW2.0. I am not seeing any focus shift and never could reproduce it. The AF behavior you described is similar to what I've seen. Lloyd claims flat targets like barns are still showing what he is calling front-focusing problems. I no longer subscribe so am not able to view his examples this time around.

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