I am interested in upgrading my zwo asi178mc to an asi294mc and use the 178 as guide camera. (edit: the 294 would be used exclusively for deep sky)
I saw there are two models of the 294, one is cooled the other is not. If the sensors are identical is the 300$ (400 cad) difference worth the cooling?
Are there any other differences between the two models except the cooling?
Furthermore, I see that the pixel size is quite big (4.63 um), what would be the smallest refractor I could use with this camera ? Is the limiting factor, the focal length, the aperture or the F/ratio.
The well depth on the camera is 63.7k, could that have any disadvantage or is the deeper the well the better (the 178 has 15k)?
What about filter size, would 1.25 inch filters work with this camera?
Lastly, are there any other issues about this camera I should be aware of?
Thank you for your time,
Edited by Iones, 16 September 2021 - 09:34 AM.