I am getting my equipment package together to start doing variable star photometry. My long term goals are to be able to contribute meaningful data in VS photometry and to work up to exoplanet light curves as well. I have two used cameras I am looking at for this purpose. Will be using a C925HD OTA with a focal length of 2350mm operating at f/10 mounted on an Atlas EQ-G mount.
My mentor, Tim Crawford, has suggested I reach out to this forum for advice. I would appreciate help from the group as to which one would be my best choice or if there are any other factors I should be considering. My choice so far is between a ST-8XE NABG w/CFW8, Custom Scientific LRGB and an Ha filters. With this I will have 9 micron pixels and water assisted cooling (which is important for my warm SoCal climate.) Or, a ST-2000XM ABG w/CFW10 and no filters (I already have an Astrodon V filter). With this I will be working with 7.4 micron pixels and water assisted cooling as well. The cameras are about the same age and priced close enough that it isn't a factor.
Thanks for your help!