A few images of the OSCILLO-PARAGON and it's helical focussing mount:
http://www.structuregraphs.com/Random%20Stuff%20-%202022/3-Jun-2022%20-%20Os
cillo-Paragon%200.7X%2075mm%20f1.9/index.html
...Wayne
> -----Original Message-----
> From: olympus <olympus-
> bounces+wayne.harridge=structuregraphs.com@xxxxxxxxxxxxxxxxx> On
> Behalf Of Wayne Harridge
> Sent: Friday, 3 June 2022 12:15 PM
> To: 'Olympus Camera Discussion' <olympus@xxxxxxxxxxxxxxxxx>
> Subject: Re: [OM] Painterly vintage Lenses
>
> I have adapted an OSCILLO-PARAGON 1:0.7X 75mm f1.9 to Sony NEX and
> also to
> m4/3 using an EOS-NEX and EOS-m4/3 helical focussing adapters . The EOS
> adapters seem to be the only adapters I could find to allow the OSCILLO-
> PARAGON to achieve infinity focus. This adaption still required machining
off
> some of the excess lens mount thread (removed about 4-5mm from
> memory) which is 50mmx0.75mm, the same thread pitch as a filter ring. I
> epoxied a 55mm -> 50mm step down ring into the EOS end of the helical
> focussing mounts which allows me to swap the lens between my Sony A7
> and various m4/3 bodies. The OSCILLO-PARAGON is interesting as it has
> negative field curvature to cope with the old style convex oscilloscope
> screens and has coverage for Polaroid pack film (4.75" x 3.5" ?) so it
means
> the centre of the image is reasonably sharp put the extremities of the
image
> are still soft even when stopped down to f16.
>
> I'll take some shots of the lens mounted on the focussing helical so you
can
> see what the whole contraption looks like but meanwhile here are a few JPG
> images without any processing from the Sony:
>
> http://www.structuregraphs.com/Random%20Stuff%20-%202021/6-Oct-
> 2021%20-%20Os
> cillo-Paragon%200.7X%2075mm%20f1.9/index.html
>
> http://www.structuregraphs.com/Random%20Stuff%20-%202021/1-Nov-
> 2021%20-%20Os
> cillo%20Paragon%200.7X%2075mm%20f1.9/index.html
>
> By the way, I think I've had this lens for 10-12 years and only recently
got
> around to doing something with it once I came across the cheap helical
> focussing mounts from Chinese sellers on ebay.
>
> ...Wayne
>
>
> > -----Original Message-----
> > From: olympus <olympus-
> > bounces+wayne.harridge=structuregraphs.com@xxxxxxxxxxxxxxxxx> On
> > Behalf Of Wayne Shumaker
> > Sent: Friday, 3 June 2022 12:16 AM
> > To: Olympus Camera Discussion <olympus@xxxxxxxxxxxxxxxxx>
> > Subject: Re: [OM] Painterly vintage Lenses
> >
> > At 6/1/2022 01:02 PM, Softish wrote:
> > >Another thing to chew on; one isn't stuck with the results of a
> > >single
> frame.
> > <http://www.moosemystic.net/Gallery/tech/SIMA/HydraMix.htm>
> > >
> > >The result is similar to what the LensBaby "Sweet" lenses are about,
> > although undoubtedly not quite the same as if I had used one.
> > >
> > >
> > >On 5/31/2022 8:50 PM, Moose wrote:
> > >>On 5/31/2022 7:44 AM, Wayne Shumaker wrote:
> > >>>I added a new lens to my vintage category. <. . .>
> > >
> > >Softish Moose
> >
> > Thanks Moose for all the comments and this idea. I did think about
> combining
> > some images. What I like about some of the alt-lenses is the way they
> create
> > interesting bokeh versus just being soft. Toby Marshall's site, in
> particular,
> > has the kinds of look I am seeking.
> >
> > I recently acquired some old tektronix scopes with lenses I hope to
> > try
> out
> > once I figure a way to adapt them.
> >
> > In the mean time I'm off to home inspection....
> >
> > WayneS
> >
> > --
> >
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