[photo-3d] Mounting marathon continues!

["Dr. George A. Themelis" <drt-3d@xxxxxxx>]

My stereo slide mounting marathon continues and
will go on for one more week (while I am in NY -
to relax between taking pictures :)).

DrDave's RBT-transfer method is working flawlessly!
I am so happy!!!

I finished mounting the NSA-Arizona slides.  I continue
mounting in 3 levels:  First I cut and mount ALL pairs
in Albion mounts.  I am very fast with this and it is my
way of previewing the pairs.  At this point I make the
decision to throw the total rejects away.  I also decide
which ones to mount in RBT mounts.  I usually mount the
ones that I plan to project in the future.  Also any
PSA Salon material goes there.  The rest will be mounted
in Spicer mounts.  Having the pair mounted in Albion
mounts first helps make decisions about what type of
Spicer mount to use.

During my Arizona trip I took 3-4 rolls with a single
(Pentax) SLR and 28mm and 50mm macro lenses.  This
includes a variety of pictures:  Hyperstereos of clouds
from the airplane, hand held close-ups of exhibits in
museums, hand held hyperstereos (from Grand Canyon, etc).

These hand-held hypers proved very difficult to mount
because a lot of them have some rotation and vertical
errors built in (try moving 100 feet between the shots
and you'll know how difficult it is to avoid rotation!)

I resorted in all kinds of tricks to mount these pairs!
My most recent is to mount both pairs in the shortened
RBT mount, then remove one chip from the rail and 
align it with the other "freehand", while observing
through the SAM lenses.  I am aware of Ray's proposed
trick of modifying one rail with only one sprocket
bump and rotate but this proved impossible to use
with a combination of rotation and vertical error.

So I do the alignment "freehand" and when I have it
right, I use a small piece of tape to hold the second
chip in place.  I then flip and over the Spicer mount 
(reduced height mounts are usually needed if there
is considerable vertical/rotation involved) and tape.  
Once the chips are taped, the RBT mount can be pulled 
out even though one chip was held by tape (small piece
of tape, comes right out).

To finish the mounted slides I use a red marker to mark
the left lower corner (I do not use sticker dots any
more) in both RBT and Spicer mounts.  I use markers
of different colors to write info in the front (white)
of the RBT mount, including my name.  I do not put 
anything in the back (I used to use self adhesive
stickers for this, but not any more - they tend to
wear out or come out when heated in projection).

For the Spicer mounts I stamp the date in the front
top, I hand-write comments in the front and I stamp
my name & address in the back.

My problem now is to remember when some of these
older slides were taken!

There is one more trick to be mentioned in the next
posting.

George Themelis