On 19/1/04, [EMAIL PROTECTED] disgorged: >On Mon, 19 Jan 2004, Cotty wrote: >> On 19/1/04, [EMAIL PROTECTED] disgorged: >> >I'd really like a pentax K to Leica screw 39 adapter so I could use a >> >couple of my M/K lenses on my V*********er Bessas, possible do you think? >> >> Entirely possible with a home-brew non-optical adapter. The distance >> between the flange of a lens (the part that rests against the camera body >> when it is on the camera) and the film plane is known as the 'register'. >> On K mount, that distance is 45.46mm. On Leica screw it is 28.8mm. You >> would need an extention to the camera body on your Bessa of 16.66mm to >> mount the K mount lens further away from the body. You could easily build >> an adapter into this distance. I would suggest obtaining the back ends of >> a pair of lenses, a K mount and a Leica screw, and fabricating the >> appropriate metal in between the two, machining it until the register is >> correct. > >Wouldn't you need the body-mount side for the K-mount lens? This could >be aquired from a K-mount teleconvertor or a K-mount body, but not a >K-mount lens. > >alex
Thanks Alex. Too much wine last night. Did I rant? Of course you'd need a K mount mount (there an echo in here?), as you suggest. A great source is an old set of extension tubes. In fact they would be ideal as they come in varying lengths and would be the right shape. Does there exist extension tubes in Leica 39 screw? Cheers, Cotty ___/\__ || (O) | People, Places, Pastiche ||=====| www.macads.co.uk/snaps _____________________________ Free UK Mac Ads www.macads.co.uk
