Quote:
Originally Posted by OzEclipse
Mohammed,
Are you asking about portable trackers for eclipse chasing / photography or for astrophotography more generally?
Drive precision and PE specs for eclipse photography are pretty irrelevant. If you use 70-80mm diameter f6-f8 refractors, or a 4-5" f12.5 mak, the longest exposures are only 1-2s for such optics. Even 200" PE won't affect such a short exposure. ..........
Joe
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I'd agree with Joe's comments here, but you might want to look what you'll do with the tracker after the massive two and a half minutes use
you might get during a total solar eclipse.
The PE of the unit will define how long an exposure you can take at a particular focal length without getting eggy stars...things get far more terse after 200 mm or so.