Quote:
Originally Posted by gb44
Very nice Lee.
Why did you go for the ZWO178mini for the guide cam?
GlennB
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Thanks Glenn :-)
I use the QHY178M for the main imaging camera and the ZWO 174 mini for guiding. I'm not 100% sure which one you're asking about, so I'll answer both :-)
I use the QHY178M for my imaging camera because it provides great resolution (in terms of arc-seconds per pixel) with my scope, has low read noise, reasonable number of pixels, and field of view which suits me well since I mostly image galaxies.
I use the ASI174 mini guide cam because it has a good form factor which means it doesn't get in the way of my focuser or anything, it has reasonable size pixels, moderate read noise (reasonably low at high gain), but
most importantly because it has a pretty big sensor for a guide cam, which makes it easier to find a guide star and since I use an OAG, that's very important.