On Thu, 06 Oct 2005 16:49:39 +0200, Cotty <[EMAIL PROTECTED]> wrote:
The registers are as follows:
EOS register: 44mm
Pentax register: 45.46mm
Nikon register: 46.50mm
So if you made a K to EOS adapter with a 1,46mm spacer, a K to Nikon
adapter would require a -1,04mm spacer, i.e. removing material
somewhere...
Adding 1.04mm material. The idea is to match the Pentax lens to the
Nikon. To get the Pentax lens 'up' to the register distance of the Nikon,
you have to add ~1mm of length to the back of the lens (or indeed the
front of the Nikon body) so that the lens focusses at the right place.
Here is a good resource:
<http://www.photoethnography.com/ClassicCameras/index-frameset.html?Lens-
adapters.html~mainFrame>
Note paragraph headed:
WILL IT FIT?
Sorry: still confused... To quote from your resource:
"For an adapter to slip in between the body and lens of differing
manufacturers, the registration distance of the lens must be greater than
the registration distance of the body"
In this case, the registration distance of the lens (45,46mm) is _smaller_
than that of the body (46,50mm). So it wouldn't work. I think. Or, I think
I think...
--
Regards, Lucas
