Re: Simonturnpike ford

[Glenn Barry <bonza1@xxxxxxxxxxxxxx>]

That should have read Arsat 30 mm fisheye.

Glenn Barry wrote:
> 
> I have modified an Arsat 37mm fisheye to shoot full frame on 5x4, it
> works wonderfully, I had steve grimes fabricate an adaptor that replaces
> the real lens coupling so that it screws straight into a Copal #3
> shutter. Once I verified everything I cut off the built in lens hood
> 
> and placed the bits in the lens cap so that I could still use it.
> 
> BTW if you can get a hold of a poor condition RB body you can remove the
> 
> front  panel and adapt it so that you can use RB lenses on 5x4, with or
> 
> without a 120 back. I have a 127 KL that covers at close distances.
> 
> I used a guitar string (metal) and brass tube to improvise a cocking
> 
> mechanism to use the built in shutters, mirror up. I didn't have a speed
> graphic handy.
> 
> So that I didn't waste the rest of the body I attached it to a panel and
> 
> use it the back of a 5x4 for quick 120 work with moderate movements,
> 
> mirror, prism and fast polaroid changes, works a treat.
> 
> Just thought that you may be interested.
> 
> Glenn
> 
> Willem-Jan Markerink wrote:
> >
> > On 15 Feb 99 at 9:32, Simon Nathan wrote:
> >
> > > dear gene-since you already have screw mount pentax 17mm lens, or did
> > > they later make it k-mount?, look around for the screw mount 15 well
> > > corrected, straight lines
> > > 15mm. it came two ways. first version has aspheric construction. then
> > > then cheapened it without lowering the price. look at 35mm  fish eye for
> > > pentax 6x7 as a lens you can take a slice from the middle. years ago an
> > > independent japanese lens mfg made drawings for fisheye to cover full
> > > panel 4x5 but felt there was little market.
> >
> > On the PhotoKina 1996, I saw a huge ISCO fisheye lens....think I
> > posted about that one on the list....relatively long focal length,
> > which implied a strange large format application....don't think it
> > was ment as a cinema/projector lens (although I have seen bizar large
> > projector systems on last years Kina....units that used spools with
> > 10" or taller film, like a giant continuous overhead
> > projector....also requiring a fork-lift to drag it around....8-))
> >
> > Oh btw, my Mamiya 37mm fisheye and Speed Graphic 4x5" finally
> > met....for the record: image circle is 92mm (at f16, no aperture-variation
> > checks yet....seems most fisheyes increase image circle when stopping
> > down, but some (Sigma 8mm) go the other way....note though that 92mm
> > is only 2mm larger than the theoretical coverage of a 56x70mm
> > frame (original RB)).
> > Now I only need to take a deep breath and cut off the 4 ears on the
> > lens....8-))
> >
> >
> > --
> > Bye,
> >
> > Willem-Jan Markerink
> >
> >       The desire to understand
> > is sometimes far less intelligent than
> >      the inability to understand
> >
> > <w.j.markerink@xxxxx>
> > [note: 'a-one' & 'en-el'!]
> 
> --
> Glenn Barry Photography
> Suite 1, 2 Mountain St
> Ultimo, N.S.W.
> 2007 Australia
> Ph/Fax (612) 9211 3080
> Mobile 0415 279 366

-- 
Glenn Barry Photography
Suite 1, 2 Mountain St 
Ultimo, N.S.W.
2007 Australia
Ph/Fax (612) 9211 3080
Mobile 0415 279 366