Quote:
Originally Posted by alocky
Although the G11 is a different mount, getting the right amount of play between the worm and wheel is an art, and you also need to do it at the tightest part of the wheel. Again, with the G11 I get the best performance when the RA has some play in it, your mount will do its own thing.
Assuming your polar alignment is good and your guide camera is correctly resolved into ra and dec, there should be very little correction in dec. Since you've got similar amounts of error in both you might well be looking at the seeing. It might be worth guiding no faster than once every 4 seconds and seeing how that looks.
Cheers
Andrew.
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Thanks Andrew - that an interesting idea! It would also improve the resolution of my guide stars. This was taken at 1 second intervals with corrections coming from the ST4 port on an SBIG ST-i directly to the Gemini (L4 of course, I've read that if it were anything earlier I would need some sort of optocoupler).
I'll give that a try!