It would be doable with a Leica R lens, or a longer focal length
Leica RF lens with short mount and Pentax M42 adapter.
The Leica R cameras have a deeper register than the Pentax M42 and K-
bayonet mount so a mount adapter could be constructed easily enough
if the flanges and aperture actuators, etc, are not placed with too
much interference.
Leica RF lenses are designed for a much thinner mount register and
could not be adapted to Pentax without optics, unless you use a short
mount lens (designed for bellows/reflex housing) and build a custom
short mount with a Pentax end.
Godfrey
On Feb 11, 2006, at 7:35 AM, Paul Stenquist wrote:
Please report back. If there's a way to achieve this, it flies in
the face of both the physical evidence and my personal experience.
Paul
On Feb 11, 2006, at 9:59 AM, Shel Belinkoff wrote:
My memory of a discussion about this with Juan suggests otherwise
- but, I
could be mistaken. I'm looking into the issue now.
Shel
[Original Message]
From: Paul Stenquist
Unfortunately, there is no way to enable infinity focus with a Leica
rangefinder lens on a Pentax SLR. The lens will hit the mirror if
it's
mounted close enough to allow infinity focus.
