I think you're totally out of luck for mounting on an OM unless you've
got a machine shop and maybe an optical shop as well. On lenses made by
Kiron, Vivitar and others during the MF days, replacing the mount on a
lens that was designed for another brand of camera would typically
require replacing every single part between the diaphragm and the lens
mounting flange. There isn't even room to do it via an adapter. Of the
mounts supported by Samyang, Nikon has the longest register distance but
it's only 0.5mm longer than OM. I doubt you can engineer an adapter
with only 0.5mm thickness to work with.
The only economic way of doing it non-digitally would be to buy another
brand of film body, either Nikon or Pentax. These are the only two
supported brands that have compatible mounts between AF and MF lenses.
Chuck Norcutt
On 8/16/2011 12:23 PM, Ch. Zhou wrote:
> In the last few years, Samyang released some interesting full frame
> lenses, like 85mmf/1.4, 35mm f/1.4, 24mm f/1.4. There delivery pretty
> good image quality and are very affordable.
>
> I really want to use them on my OM series film bodies, but there are no
> OM mount versions. So I am wondering if I can modify the mount, or send
> the lens to someone to modify it. I am not talking about adapter, I mean
> modifying the mount to make it native OM.
--
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