On 2/21/2013 10:39 AM, Chris Barker wrote:
> Good idea, Chris, but I thought that you were one of the handy types on the
> List, handy with working metal, I mean.
>
> Chris
>
> On 21 Feb 2013, at 13:17, Chris Trask <christrask@xxxxxxxxxxxxx> wrote:
>
>>> Some clever chap has managed to make a mount for Pentax K to OM:
>>>
>>> http://www.pentaxforums.com/news/pentax-k-plus-multi-mount.html
>>>
>>> Looks a bit too much work for me . . .
>>>
>> This is ingenious! Now if someone would make one so the OMs can use
>> other lenses.
K-Mount register distance is 45.46 mm.
Nikon F = 46.5
Olympus OM = 46
Contax/Yashica C/Y = 45.5
Konica AR = 40.5
On his mount, the first three will focus past infinity, probably not noticeable
on C/Y, and slightly less close than on
their native mount. The Konica lenses will not even come close to focusing at
infinity, useful for close-up/macro only.
If one does some similar modification to the OM mount, it would only be really
useful for Nikon F mount lenses, which
would focus slightly past infinity.
A 44 mm register distance is the reason Canon EOS (EF mount) is the almost
universal recipient body for SLR lenses.
Register distances Short (38.58) and Shorter (20.00) are why there are adapters
for 3/4 and µ4/3 for so many lens mount
types.
Distantly Registering Moose
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What if the Hokey Pokey *IS* what it's all about?
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