50 RBT Mounts 31.5mm almost full frame, very useful for cropping close-ups

Description

For Accurate & Fast Stereo Slide Mounting
Box of 50 RBT Mounts for Full frame Stereo Slides (31.5mm wide)
Openings of 31.5mm - Also used for cropping full size slides
(other sizes are also available in my ebay store)
Click here for instructions:
RBT Mount Instructions, pdf file (437KB)
Preferred by the Experts - Here is why:
They are a
snap
to use:
Separate the two halves.
Put a pair of pin bars (while little things) in place (usually for me this is the upper channel, same orientation).
Put the film chips in place.
Adjust the stereo window by sliding the chips horizontally while freeviewing the stereo pair.  For a beginner, just center the film chips in the mount aperture openings.
Snap the two halves together - Done!
Finishing touches include writing with marker the title and other info in the front and putting a sticker with my name and address in the back.
Adjustment of the stereo window is very easy
since the film chips slide parallel, being supported by the pin bars.
Vertical adjustment is precise
, done in steps of 0.1mm (changing the orientation of the pin bars changes the vertical difference - details are in the enclosed instructions).
No rotational errors!
The system of pin bars assures that there is no possibility of rotational error when you do the vertical and horizontal adjustments.  For me, this is the biggest advantage of these mounts, and that's the reason I recommend them to beginners.
Their extra thickness and stiffness is a
plus in stereo projection
.
Being made of
plastic
means that they do not have cardboard dust like some cardboard mounts, they do not have oils and will not scratch the film (like some metal mounts), and are reasonably maintenance-free (just store in a dark, dust-free place).
They come in a
large variety of aperture openings
(plus a unique system for vertical cropping to either 20 or 15mm).  A cropping system is also available,
They are
easy to label
by writing on the light side with a marker.  You can also
easily reuse
them:  Open the mount, remove the film chips, done!  I use rubbing alcohol to remove previous labels.
Note
:
The following sizes are also available.
Please contact me for availability (I normally stock the
4p, 5p, 7p, and 8p)
4p (Nimslo format, 16x21mm)
5p (Realist format, 21x23mm)
Realist close up (19.5 x 23mm)
7p (European format, 28x23mm)
7+ (30x23mm)
Wide (31.5x23mm)
8p (33x23mm)
I am a big proponent of these slide mounts and I recommend them for beginners or anyone who wants to project their stereo slides.  The biggest advantage is that they eliminate rotational mounting errors (one film chip is rotated with respect to the other, a major problem in stereo projection).
Now, I use RBT mounts for my best slides and the ones I project.  That's because I shoot a few thousand stereo slides a year.  If I used RBT mounts for all of them, I would be in the poorhouse by now!  But I know of many beginners or less prolific stereo shooters who use RBT mounts for all their slides, taking advantage of the convenience and precision of these mounts.  The RBT mounts have become very popular with time.  Quite a few of our stereo club members now use these.
Shipping weight is 2 lbs
I welcome bids outside of the USA!  - Half of my items leave the USA
Please see my other auctions for similar items:
http://stores.ebay.com/DrT-3d
Please Note
: If you have a problem with your purchase, please let me know as soon as possible (remember, I sell a lot of items on commission and I need to close these accounts).
Contact me
before leaving non-positive feedback (
including neutral
)
or anything less than 5 star rating
.
I will do my best to resolve any problems.
I accept returns
for most of the items that I sell. I always leave
positive feedback
.
I appreciate your business
and I hope to see you back!
** DrT knows 3D **
I have been into photography and, specifically,
stereo (3D) photography
since 1988 and into the stereo photography business since 1994 and I have
plenty of satisfied customers
. I specialize in
stereo education
through books, lectures, videos, CDs,
Stereo Realist camera repair
,
stereo viewer repair
,
stereo photography supplies, and commission sales of photographic items.
I still shoot film (stereo slides) and have great fun doing so!  Starting in 2009, I am also involved in digital stereo.
If you like my auctions and would like me to sell things on your behalf, please contact me to make arrangements.
Meet DrT in person in one of these stereoscopic gatherings:
Any stereo club meeting in
Cleveland OH
(first Tuesday of each month Sep-Jun)
Most National Stereoscopic Association (NSA) Conventions
Any 3D Stereoscopic Weekend in
Cleveland OH
Thank you for looking!