Depends on the whole situation.
Are you using an OAG and what type. Will you be using a thread connection to connect your guider to the OAG and can you get adapters to do this at the correct focal length or can your OAG adjust focal length for the guide camera.
Focus of the guider is the biggest issue.
And then do you mind if your DSLR is upside down to clear the OAG?
Quote:
Originally Posted by xa-coupe
I'm in the throes of setting myself up for astro photography and am looking into the future and wanting to get a guide scope/camera. I have the scope now but cannot figure out why there are mini guide cameras like the ASI 120mm mini guider, as well as things like the ZWO ASI120MM-S Monochrome, which can be used as a guide camera too. There's only $69 between the two so in a hobby that isn't cheap, there's no appreciable difference.
Which brings me to my question... which one? I'm leaning towards the ZWO ASI120MM-S Monochrome as it appears to be a good general camera for planetary photography.
thanks
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