I’m considering purchase of one of those cameras to use with StarAnalyser. It would be used with either 100mm or 80mm f5 achromats. I realise that achromat is not ideal scope for spectroscopy, but that’s all I got at present.
http://www.zwoptical.com/Eng/Cameras/ASI130MM/index.asp
http://www.zwoptical.com/Eng/Cameras/ASI120/index.asp
Which one would be more suitable for use with SA?
ASI120 got newer sensor 75% peak QE and 12bit A/D converter. But it is only 1/3” sensor with 3.75um pixels – so field of view is quite small.
ASI130 uses same sensor as QHY5 and got only 55% QE and 8bit A/D. But it got ½” sensor with 5.2um pixels and decent field of view. I have tried StarAnalyser with QHY5 and was not too happy with it because of excessive noise.
Decisions decisions.