Quote:
Originally Posted by sharpiel
Not sure what they're like to use nor what you want to spend but:
- There have recently been two ONAG's for sale in the classifieds. I'm not 100% sure that it uses a par focal arrangement but others can confirm. If so you'd be eliminating guide camera focusing once you focus the imaging chip.
- SBIG make self guiding cameras. I'd assume (not used one) that they'd be parfocal.
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Thanks Les
May research ONAGs. I actually have an older SBIG STT8300 with the selfguiding filter wheel. The guiding was a little problematic with PHD so haven't really used it. It is not parfocal with the imaging chip. The house has a focusing knob on the outside.
Cheers
Malcolm