Pentax's 645D Af fine tune system?

Started Feb 10, 2012 | Discussions thread
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rmlewis Regular Member • Posts: 453
Pentax's 645D Af fine tune system?

Hi All

in an old post in the Nikon forum ( ) a forum member (Dave) stated when comaparing the D3x and 645D:

"Many of Pentax's legacy lenses are exceptionally good (and exceptional) and some just "OK"....but to get the most out of them, both a good sample must be located and each lens must be carefully adjusted through Pentax's 645D Af fine tune system."

Ive searched the 645D manual for the fine tuning system and can't see any reference to it.

Is someone able to point me to more information on this?

Rob Lewis
Blog at

'Being rich is having money; being wealthy is having time (to take photos).' Apologies to Stephen Swid

 rmlewis's gear list:rmlewis's gear list
Canon EOS 5D Mark III Sony Alpha a7 II Sony Alpha a7R II Canon TS-E 17mm f/4L Sony 24-70mm F2.8 ZA SSM Carl Zeiss Vario-Sonnar T* +18 more
Nikon D3X Pentax 645D
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