Pentax 500 F4 Lens : LUSENET : Bulletin Board for Medium and Large Format Photography : One Thread

I'm looking at a Pentax SMC Manual Stop Down 500mm F4 lens. If I purchase it I plan to use it on a 645n (with adapter)> Does anyone know what this lens is like? I would probably be shooting it wide open so performance at that aperture is important to me. What is the minimum focus distance. Can any one out there help...tks...jim

-- Jim Vanson (, March 26, 2000

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