I was looking at this too a while ago but after 2 hours you have to stop it and wind the worm gear back and start it again! No good for long timelapses of several hours! It's fine for single shots though. But it can carry up to 15kg supposedly and is accurate to 5 arcseconds over 5 mins.
Quote:
Originally Posted by Waxing_Gibbous
FWIW, Oceanside Phot. & Telescope (OPT) in San Diego seems to have four or five Astro-Trac TT320Xs (used) at aroud the US $500 mark.
I would think shipping would be around US $100.
I've not used the Astro-Trac myself, but a local pro-tographer I know loves his.
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