P3D Re: Re: PHOTO-3D digest 2414

[bsharp@xxxxxxxxxxxxxxxxxxxxxx]

Further to the 3Discover Cassette problem I tried a fresh set of
batteries in the 3Discover Viewer and now find that it works fine with
all of my cassettes.  I don't know why it would work properly with all
but one but the fresh batteries appear to have solved the problem.  The
viewer must be very voltage sensitive.  As the old batteries had enough
power to advance the cassette I had never thought that this would be
the problem.  Thanks for the information Greg.

Bill 



> ------------------------------
> 
> Date: Sun, 23 Nov 1997 15:46:36 -0800 (PST)
> From: "Gregory J. Wageman" <gjw@xxxxxxxxxx>
> To: photo-3d@xxxxxxxxxxxxxxxxx
> Subject: P3D Re: Re:  P3D Re: Re:  3Discover Cassettes
> Message-ID: <199711232346.PAA03803@xxxxxxxxxxxxxxxxxxx>
> 
> Bill Sharp wrote:
> 
> >There is something faulty in the cassette that the viewer cannot read
> >where the cassette should stop.  As Wrebbit has already replaced one
> >defective cassette I don't feel that they will replace this one.
> 
> >I have had only five cassettes and found two to be defective.  Although I
> >like the 3Discover System, and the cassettes that are available, it does
> >not appear that the cassettes will last very long.
> 
> I am very skeptical that the problem could be in the cassette.  The
> positioning mechanism works by bouncing the light from an LED through
> the filmstrip and back to a photocell.  The light is interrupted by a
> dark area on the film when it is positioned correctly on a frame.  The
> only way this could "go bad" is if you physically damage the cassette
> or filmstrip in some way.
> 
> On the other hand, I have found the viewer to be very sensitive to
> battery voltage.  Even when the motor appears to be advancing properly,
> the positioning mechanism may not function if the batteries are worn.
> Try a fresh set and see if your problem cassette gets fixed.
> 
> A real problem with the cassettes is dirt.  Even though I've retained
> the original seals and replace them when the cassettes are off the viewer,
> the films are getting dirty, and there's no way to clean the back side
> of the film. :-(
> 
> 	-Greg W.
> 
> 
> ------------------------------
> 
> Date: Sun, 23 Nov 1997 15:50:33 -0800 (PST)
> From: "Gregory J. Wageman" <gjw@xxxxxxxxxx>
> To: photo-3d@xxxxxxxxxxxxxxxxx
> Subject: P3D Re: Re:  P3D Re: Old Kodachrome
> Message-ID: <199711232350.PAA04000@xxxxxxxxxxxxxxxxxxx>
> 
> Alan Lewis wonders:
> 
> >I could just add these to my collection of old film canisters or maybe
> >try one out.  Any possibility the film is still useable?
> 
> You will almost certainly have a problem finding someone to develop it,
> as the current K-14 process uses different chemicals.  There are a few
> places that will do a batch once in a while, when there is enough demand
> pent-up.  This question shows up on rec.photo.film-and-labs periodically.
> I don't have any names/addresses for you, though.  Just something to
> consider.
> 
> 	-Greg W.
> 
> 
> ------------------------------
> 
> Date: Sun, 23 Nov 1997 15:53:18 -0800 (PST)
> From: "Gregory J. Wageman" <gjw@xxxxxxxxxx>
> To: photo-3d@xxxxxxxxxxxxxxxxx
> Subject: P3D Re: Re:  P3D Re: Revere vignetting
> Message-ID: <199711232353.PAA04090@xxxxxxxxxxxxxxxxxxx>
> 
> Paul Talbot writes:
> 
> >I've noticed that the vignetting with my Revere is *far* worse than
> >with my Realists.  Looking at the camera now with the retaining ring
> >of the "integral adapter" removed, I'm wondering if the vignetting
> >might be reduced significantly without them in place.  Any Revere
> >experts have any experience with this?
> 
> You should be able to see the source of the vignetting while looking
> through the lenses with the back off the camera and the shutter open.
> Look from the corners of the aperture masks.
> 
> My Revere doesn't vignette that I've noticed, but I haven't used the
> extreme apertures much, if at all...
> 
> 	-Greg W.
> 
> 
> ------------------------------
> 
> End of PHOTO-3D Digest 2414
> ***************************
> 


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