Re: Stereo Mounting

[P3D David C. Glick <xid@xxxxxxx>]

Phil Palmer  <phil@xxxxxxxxxxxxxxxxxxx> wrote:

>Frankly compared with the Bonum mounts, that I am still using which I find
easy 
>to use (it seems nearly impossible to twist the chip and the horizontal 
>alignment is easily adjusted with the tool included) I think using these 
>bits of flimsy aluminium, card, sticky tape and tweezers would drive me
>spare !

RBT plastic 41x101 mm mounts have pins to register the slide chips, and the
pin assembly is vertically adjustable to fix discrepancies in vertical image
coverage between the two chips.  They're expensive, but slightly less
expensive than two 2x2 inch Gepe mounts.  They're easy to use and easy to
re-use.  The translucency of the tapered edge of the mount next to the film
is a bit of a problem, but you should definitely consider them.  They are
available to hold a variety of formats (a variety of widths of 35mm high
film) all in the same 41x101 mm mount.

>Now I realise there are good points and bad points to 2x2 as opposed
>to Double Aperture - 
>
>  Double Aperture mounting is cheaper.
I think that depends entirely on the mounts used.  There are many possibilities.

>  You are not going to lose one of the pair in double aperture mounting.
Yes, and it's a lot more convenient to pick up one mount rather than two to
put into a viewer. 
This adds up after a while, and is also more inviting for our non-3D-fanatic
friends.

>  2x2 mounting seems to be a lot less messing that 'RL' mounting. 
Yes, I used to just plop the 2x2 mounts right from the box into a hand-held
viewer; it doesn't get much simpler than that.  Of course they would require
precision remounting if they were to be projected.  However I think the
complexity of 2x2 Gepe (or I think Bonum though I'm not too familiar with
them) and 41x101mm RBT is about the same.

>  By the sound of it 'Realist format' hand viewers are easy to get and
>    are of better quality (Please comment !).
I went through what you're going through and that's what I decided.

>  It seems to me 2x2 projection (i.e. two matched projectors) would be
>    easier to get hold of than 'Realist format' projectors (Please comment !)
Yes, and modern features like remote control and automation are available
for modern 2x2 projectors.  For me this was the crux of the problem.  41x101
mm seems far superior for hand viewers; 2x2 has some advantages for
projection, at least for some of us who have access to 2x2 projectors.  I
decided that hand viewing was my priority and therefore I'm switching to all
41x101 mm mounts.  Eventually I hope to get set up for projection too.

Now if anyone has a magical solution to fitting my VERTICAL FORMAT separate
2x2 pairs (which look great in a 2x2x2 viewer) into this system, I want to
hear it!

David Glick        xid@xxxxxxx               State College, Pennsylvania


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