It would be pretty obvious if it's screw mount. Since it's labeled
automatic I assume it's Pentax/Praktica mount and not some horrible T
mount monstrosity. The problem is that while there are a variety of M42
to K mount adapters available, there are none to put K mount lenses on
M42 mount came
It will work, but it’s hardly worth it. You’d have to use an adapter on each
end, and the quality of those old Vivitar converters is not stellar. You can
probably find a K-mount version of a similar adapter for less than the cost of
the adapters. Of course what you really want is the new Pentax
Hi Everyone:
I’ve been cleaning out a closet, and I found a Vivitar Automatic Tele Converter
2X-1. Am I right in assuming this is a screw-mount converter for Pentax-M42
something? Anyone know anything about this? Is it possible to use with DSLRs?
I’m assuming some kind of mount adapter for
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