[MF3D.FORUM:1619] Re: GEPE mounts

["Alan Lewis" <3-d@xxxxxxxx>]

Bob Aldridge wrote:
> << Also, when single mounts are used as stereo pairs what mounting gauge
>  dimensions are used?  In other words is there an infinity spacing
standard
>  with a set gap between slides (similar to the Reel 3-d mounting gauge for
>  twin 35 slides)?  Or is it a free for all? >>
>
> I'd guess it's a free-for-all! Window is 54.4mm, so the sides are 7.5mm
> Overlapping them would give 63.3mm - possible for viewing without mirrors
or
> prisms. The infinity separation would depend on the MOFD deemed desirable.
> I've seen various values for this!

Thanks Bob for the mount dimensions.
I rec'd some GEPE mounts to look at and I now have these questions to the
list:

1) Yes, it appears that overlapping them will get the window to around 63mm,
which should put the infinity separation around 65-66mm in an ideal world.
But can the infinity separation be easily controlled when using twin cameras
and GEPE mounts?

2) Since the GEPE mask is so close to the final image size from the camera
there doesn't appear to be much room for adj. the infinity separation, or
setting any kind of window.  Is this the case in reality?  Is there really
any kind of actual window setting when using these mounts in a viewer?  The
window may end up being infinity.

3) Because of the mount mask size I get the feeling that one just puts the
film chips in the mounts without any meaningful adjusting of spacing and
then see how it looks in a viewer.  The Free for All mounting system.

Any comments from actual users of the GEPE mounts to fill in the answers?

Thanks.

Alan Lewis
3-d@xxxxxxxx
Serious viewers for serious Viewers
http://members.home.net/3-d