Quote:
The new SBIG STf8300 has a built in OAG which is a welcome addition to CCD cameras. It would be on my wish list for FLI or Apogee to make something like this. OAGs are definitely the way to go.
Greg.
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Perhaps if your mount and polar alignment are a bit dodgy or you have a mirrored scope with plenty of flex spots but not a refractor..? With a quality mount meah, no probs...
I've done quite well at 1300mm FL (similar to most other 6" refractors) for some years now without a selfguide chip or OAG unit in sight
... a little overated IMO
... particularly at this FL
Not a single AO, self guide or OAG in sight for
any of these either he he...?
A
good mount is very useful though
Mike