Re: [photo-3d] Spicer mounting, hyper photo posted

["David W. Kesner" <drdave@xxxxxxxxxx>]

Ralph Johnston writes:

> Anyway, I just mounted my 8-perf RBT slides in Spicer mounts using the RBT
> jig.  These were in 7 or 8 perf cutouts.  Out of  two rolls, I had three
> pair with vertical misalignment and had to go back and remount them in RBT
> mounts.  Then they were fine.  I think I need a more accurate way to align
> the RBT jig with the Spicer mount.  Am I being too sloppy?  Maybe need to
> pinch at each end instead of just in the middle.

I assume the misaligned pairs were because they were hypers, 
is that true? All the chips from the same camera should have 
the same amount of vertical/horizontal/rotational deviation.

Let me try to understand your question and scenario:

You are using the modified RBT jig and Spicers mounts. You 
didn't have any problems with all but three pairs. Those three 
you simply placed in an RBT mount and they were fine?

If your chips were ok in the RBT jig and not the Spicer mount 
then you are having a problem in the transfer. If tey were not 
ok in the jig then it was because you did not keep the camera 
level when moving it for the hyper.

In the case of vertically misaligned hypers I do the following:

1) Place the chips in the jig and set the window.
2) Place the jig on a reduced height mount.
3) Align either the right or left chip. If the right chip is 
higher make sure you have enough image in the left chip to 
move it up (vise versa if it is lower).
4) Tape down only the chip you have aligned.
5) Holding the other untaped chip tight to the mount, remove 
the jig.
6) Slide this untaped chip either up or down to correct for 
the vertical misalignment. Make sure to not introduce any 
rotaional error.
7) Tape this chip down.

If this is a case of the RBT jig not having enough vertical 
alignment I do the following:

1) Place the pins to get the maximum alignment.
2) Place the chips in the jig and set the window.
3) Place the jig on the mount.
4) Rotate the jig and chips just enough to align vertically.
5) Tape the chips and remove the jig.

This will only work when the vertical alignment is slight. If 
it is too great then you have a problem with your camera and 
need to get it fixed.

As far as aligning the jig with the mount there are two 
methods:

1) Fold the mount so the back is at a 90 degree angle to the 
top and then place the jig on the mount and push up against 
the fold.

2) Tape a straight edge to your light box. Place the mount 
against the straight edge. Plcae the jig on the mount and push 
up against the straight edge.

Personally I use method #1 as it allows the chips to be 
mounted so the taped shut edge is at the bottom.

Does this make any sense? If not just ask more specific 
questions.

That's all for now,

David W. Kesner
Boise, Idaho, USA
drdave@xxxxxxxxxx