That one might be fine however it does not have a helical focuser that mine has, it is the QHY medium autoguider https://agenaastro.com/qhy-off-axis-gui ... oag-m.html
. If you intend to use filters in the future make sure that the OAG
is appropriate for the filter size. QHY has a small / medium / large size, I forgot what the criteria are but they list what camera they can be used with.
I like having the helical focuser for making small adjustments though I'm not sure if it is necessary. The ASI120MM mini that I have is narrow enough that I can hold it between thumb and fingers with the thumb resting on the OAG
so with loose screws I could probably move it manually accurate enough. When it is slightly out of focus I get V-shaped stars in the OAG
, when I focus it, they are round again. It will take some effort to become familiar with it.
One more advantage of an OAG
is that it is attached to the imager so it becomes one combined piece of equipment that you don't have to worry about as opposed to having a separate guide scope. I use a lanyard on the combination wrapped around the focuser knob to keep it from falling.
The ASI2600MC seems to not need taking darks at all when cooled properly according to others. Taking darks is a PITA because they take a long time (flats and biases are quick). It is 16 bit. So I recommend it, and for all the other reasons I mentioned.
Getting back to your original argument, I know someone who has an SBIG and he mentions that one major advantage is that it can stack 10 second images live. For him this eliminates the need for an autoguider, which is what you had in mind. He has an iOptron CEM120 like yours and an 11" SCT
. I don't think the ZWO cameras can do this yet. Maybe it is possible using SharpCap (I don't know because I image on Linux). Check this thread: https://www.cloudynights.com/topic/7321 ... -stacking/
... Henk. Telescopes:
GSO 12" Astrograph, "Comet Hunter" MN152, ES ED127CF, ES ED80, WO Redcat51, Z12, AT6RC, Celestron Skymaster 20x80, Mounts and tripod:
Losmandy G11S with OnStep, AVX, Tiltall, Cameras:
ASI2600MC, ASI2600MM, ASI120 mini, Fuji X-a1, Canon XSi, T6, ELPH 100HS, DIY:
OnStep controller, Barndoor trackers for 10" Dob and camera, Afocal adapter, Foldable Dob base, Az/Alt Dob setting circles, Accessories:
ZWO 36 mm filter wheel, TV Paracorr 2, Baader MPCC Mk III, ES FF, SSAG, QHY OAG-M, EAF electronic focuser, Plossls, Barlows, Telrad, Laser collimators (Seben LK1, Z12, Howie Glatter), Cheshire, 2 Orion RACIs 8x50, Software:
KStars-Ekos, DSS, PHD2, Nebulosity, Photo Gallery, Gimp, CHDK, Computers:
Pi4b, 2x Pi2b all running Astroberry, Toshiba Satellite 17"