Many thanks all for the kind words
Yes, indeed I was quite shocked with the resolution acheived with this system! It's a pity that my poor EQ6 has a wild P.E. and it's a challenge to get longer unguided subs with the ASI 120 and the >20kgs 300mm ota....I must try this again with my 200mm f/4.6 newt.
Also this got me thinking on cooling this little ASI 120MM, compared with a DSLR it's a walk in the park, I should be doing this as soon as I can, and go for a bit longer subs (not by much or the lucky imaging stops beeing lucky...) but it should give me cleaner data to play with, some of the smaller planetary nebulas should be great with this sort of imaging, also in LRGB and a couple thousand subs to clean up that back ground noise!
It's too bad that the ASI 120MM has quite a bit of vertical banding but some sofwares take care of that to some extent, also I must try and find out how to do a full callibration with IRIS for the ASI 12o tiff files, I'm not sure how to subtract the bias...this should help further with noise levels, I did use on these two sets the automatic dark frame subtraction under Firecapture (excellent planetary capture freeware) but I'm not sure if it handles the bias from the darks or...?
Anyways...this is cool stuff indeed, so simple toget good resolution images (the main goal here is resolution) and yet so effective...me likes a lot!
Edited by Campos, 03 May 2016 - 03:37 AM.