Good results Wayne, a focussing mount will help a lot for ease of use.
...Wayne
> -----Original Message-----
> From: olympus <olympus-
> bounces+wayne.harridge=structuregraphs.com@xxxxxxxxxxxxxxxxx> On
> Behalf Of Wayne Shumaker
> Sent: Wednesday, 22 February 2023 3:59 AM
> To: Olympus Camera Discussion <olympus@xxxxxxxxxxxxxxxxx>
> Subject: [OM] OT: Oscillo Raptor
>
> Some initial shots with Wollensak 3" F1.9 Oscillo-Raptor (1:0.7X) (75mm),
> mostly bokehish stuff.
>
> https://photos.app.goo.gl/5uvGmLDjpijJHnd97
>
> I pulled this lens from one of several Tek scope surplus cameras. Most of
the
> lenses I have yet to figure out how to work with, but this one seems to
work
> the best for adapting. I found a Baader T-ring adapter to NEX, and
removing
> the inner piece, it happened to fit the back of the lens (essentially an
m48 T
> thread to E adapter). Then some E extension added the final touch. Working
> on getting some form of helicoid. All the shots were fixed focal length
> depending on the extension.
>
> WayneS
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