It is definitely threaded.
Mike
-----Original Message-----
From: owner-olympus@xxxxxxxxxxxxxxx
[mailto:owner-olympus@xxxxxxxxxxxxxxx]On Behalf Of Lex Jenkins
Sent: Thursday, June 22, 2000 12:51 AM
To: olympus@xxxxxxxxxxxxxxx
Subject: RE: [OM] t-mount wanted.
I found what I'd hoped would be an OM T-mount adaptor, but isn't quite. One
side fits the body's bayonet mount, altho' without locking in place (no lens
release lever) or provision for diaphragm actuation.
The inside appeared at first to be threaded. It turns out to be finely
baffled to prevent extraneous light bouncing around, as many lens hoods are,
and finished in flat black paint. Are you certain the item you've described
is actually threaded rather than baffled?
The opposite side is merely a flanged circular opening. Presumably some
sort of locking collar with set screws would fit over this end. Etched on
the outer face, in fine script, is the word "Olympus" and next to it "OM".
Now I don't have a clue what it was intended for. But I'm sure I can think
up a use for it - perhaps as a mount for that homebrewed single element lens
I've been planning. Now all I need is a suitable barrel.
Lex
----Original Message Follows----
From: "Michael Stephens" <mike1964@xxxxxxxxx>
I have a mount - but I'm not sure exactly what it is. It came off of
an OM-4 that was used in a lab, presumably on a microscope. It says
"for Olympus OM" on the front, flat surface. The inner portion is
threaded. It has an automatic open f-stop connection (meaning that
it actuates the camera in a fully "open" aperture setting, and holds
it there, so that the aperture can't be adjusted. Anyone know what
this might be used for?
Mike
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