Originally posted by DAP From what I understand it is the same optical formula as the M-mount 75/2.5 that voigtlander sells. If so it is a fine lens, but nothing extraordinary. I certainly wouldn't pay over $500 for one. Just to keep things in perspective, for that much money you could buy a used voigtlander bessa camera and a used m-mount 75mm to go with it. Or a used 77 limited
Decided to put this info in this thread as well:
After some googling, yes, the lens formula for the vt 75 and the DA 70 does seem similar. Both consist of 6 elements in 5 groups, with the elements positioned in the same way.
DA 70 lens
formula
Voigtlander 75/2.5 (LTM mount)
formula
Interestingly, the FA 77 shares a somewhat similar optical formula, with the difference being an additional element right at the rear (FA 77 has a 7 elements 6 group configuration). The configuration of the other 6 elements are very similar to that of the DA 70 and Vt75.
FA 77
formula