> >The hardest part will be to ensure calibration at or near
>>the ends (infinity and closeup). Full testing of the lens
>>may be required before you waste a film on testing (and
>>you can't see much in the viewfinder, you have to use a
>>microscope which is a part of the infinity jig).
>> Do you have an infinity test jig ?

It's for my Minolta 7D DSLR, so wasted film is not a problem. The 7D 
has direct to PC download capability (which I haven't tried yet) so 
this would make examination of images far quicker when iterating. I 
have not needed to touch the lens module proper as it comes out as a 
unit, so I *imagine* that "all" that is required is to properly locate 
the lens rear the proper distance from the image plane (assuming it is 
square thereto). It seems that this will not be an impossible task. If 
it is then ...

> My Father has one made by Carl Zeiss.

... I may be making the acquaintance of Alan's father :-)
(Only about 400 miles from here).

Zeiss is good :-).


        RM 

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