I own a SMC Takumar 500. It has screw threads (M42) and will fit on my Spotmatic or ES II cameras. There was a K-mount version as well that could be used on the bayonet mount Pentaxes. The lens is really heavy and should be used on a tripod. A more useful lens is the 300 mm.
Jim A. > Hi all, > > sorry I am new in Pentax collecting. > > I recently bought a Takumar 5/500mm. All black. > > Found nothing about it. Do you have informations? May I put this lens on > a Spotmatic? > Best regards, François (Paris FRANCE) > >

