Quote:
Originally Posted by allan gould
I keep hearing what you have stated Brendan re an OAG, however although I have a QSI583wsg and a separate OAG for other systems I've never been able to get decent stars or consistently find find a star to guide on. I find the separate system far easier and I've never had to alter a composition to find a guide star yet. To each their own but I find a separate guide scope far easier and simple to use. The only secret is to eliminate ALL flex in the system.
I only put this up to help others going down this path that it is doable and how I've done it.
Allan
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I suspect you'll find things different with a Lodestar (or similar). I had little or no success with a SSAG on my QSI WSG when trying to image a 2200mm - it was just too dim, even with 8-10sec exposures. The lodestar could pickup guide stars with 1-2 sec exposures. Only pain with swapping to a lodestar is that you will need to get the C-mount adapter from QSI, instead of the T-mount adapter for the OAG.
DT