Wednesday, May 07, 2014

DA70 Limited, FA77 Limited, and A*85 are of the Same Gene

First, have a look on these optical construction:




So, the optical design of FA77 and A*85 are very close enough, with the same 7 elements in 6 group configuration. It is quite obvious that the FA77 is a miniature of the A*85, only with some minor modifications. And then the DA70 is yet another simplified version of the FA77, with one close-to-rear element omitted. So, everything are of the same Pentax gene actually. Indeed, when I first used my DA70 on my Pentax DSLR, I did feel the extraordinary film taste of it for its very good 3d feel and colour rendering, unlike other DA lenses that I may not that like.

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