I am one of the friends that StarFood talked about getting a ZWO ASI178MM Cooled. I was able to get some imaging in the other day. I unfortunately had some issues with tracking and focusing, but ignore the lack of round stars and the info should still be good LOL. More testing will be done tonight.
Here is a shot of my setup. It includes the 178MM, Teleskop Service filter holder system, T-Thread to EOS adapter, Canon 100mm F2.8 Macro. I am using a 75mm TeleFokus Microfocuser from teleskop-express. I now have the camera mounted using 90mm scope rings from ADM instead of the tripod foot shown here.
Here is the stacked image of Flaming Star and Tadpoles I shot. It was on a Mach1GTO, unguided, and unfortunately with a poor polar alignment (hit my RAPAS and knocked it out of alignment and haven't adjusted it back yet) It is made up of the following:
(100) 60s 1x1 Ha
(30) 60s 1x1 R
(30) 60s 1x1 G
(30) 60s 1x1 B
(162) Bias (Sequencer Generator Pro crashed on me during shooting the Bias that's why the odd number)
All data was shot with the cooler set at -15C and set at the lowest read noise preset. Though the Darks and Bias were shot earlier in the week in my apartment. Images were processed in PixInsight and the final version was then brought into PhotoShop for final editing.
The above image is cropped some from the original because of poor alignment of RGB to Ha (forgot to re-center after meridian flip)
Here is the uncropped single frame Ha data. As you can tell the amp glow is pretty bad.
Here is the stack of 100 Ha with Bias and Darks applied:
Here is the master Bias:
And here is the master Dark. You can tell the Amp glow is quite pronounced with 100 darks stacked. But it seems to handle it well when applied to the light frames:
All in all I think this camera is going to be capable of some great imaging. Just have to be prepared to gather a lot of images and have a good library of Darks and Bias. Flats will probably help some too and hopefully I can test that tonight. The biggest advantage of this camera is going to be the shorter exposures and lack of guiding. I am really looking forward to imaging with this camera more!