Richard wrote:
Paul Furman wrote
Paul Furman wrote:
The overpriced panorama plate for rotation that I mentioned is still not
ideal because it doesn't have a micrometer knob that turns it, just to
loosen/tighten. Ideally one of these:

Here's a better model that I could not find used:
40mm rotation stage part number 124-0030 $200.00
http://www.optosigma.com/miva/mercha...otation+Stages
and for use on a tripod and camera:
40 mm Adapter Plate 40 x 40 x 6.25 $40.00 123-8220
http://www.optosigma.com/miva/mercha...de=Accessories

And for just twirling a small subject around with a micrometer:
http://www.lightglassoptics.com/Newp...age_p_569.html

BTW I think a focusing rail is the best bet for xy positioning, for z
positioning vertical, a really crappy broken microscope should be fine.
I haven't tried these but I think the scientific positioning stages are
too fine an adjustment for macrophotography. That precision is for
microscopes, fiber optics, etc and might be tedious working in such
small increments.

XY focusing rails for $80 to $650:
http://www.google.com/products?hl=en...=hp&q=focusing rail
Nice that there's a long travel, much more than with the micrometer gear
unless you pay for huge gear. Again, I've not tried these but guessing
you get what you pay for. I got an odd bellows online because it had
tilts & shifts and gets real close but it's a really flimsy piece of
machinery, totally useless with a lens of any weight, or less than
perfect stability.


http://www.google.com/products?q=rotation+stage
Another solution could be an automated telescope mount which can be
programmed to follow pans & tilts on a set timer. I had to turn two knobs
for each frame and keep an eye on the live view to keep focus in the
center of the frame.

Thanks Paul.

You're welcome! It's fun.

--
Paul Furman
www.edgehill.net
www.baynatives.com

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