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depends on the frequency I guess - I have no idea what mine was. The SBIG is a relatively heavy camera, so you might expect fairly long period resonances (if there are any) - 1 second exposures might possibly be OK in that case. Of course you should check for tracking errors, but it is probably still worth checking for resonances - bit of a long shot, but I was surprised at how distinct and persistent the resonance was in one configuration of my system whereas it was otherwise quite stable.
Last edited by Shiraz; 15-03-2014 at 05:57 AM.
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