Quote:
Originally Posted by barx1963
I have used a couple of OAGs in my time. Never liked either of the particularly. Fiddly to focus is my main complaint. I know getting precise focus is not necessary, but I want to be able to control it. Is there a better OAG out there? Have used the ZWO and ATIK One OAG BTW.
Malcolm
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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.