elNaboet

Hi, After a few year roaming around here for help I never though to search for local stuff and but now I did. I know this is probably been "fixed" but if you still need someone to show some views through a telescope I can help. I leave in Chippenham which is relatively close to Melksham and i can drive my scope there. Let me know if after this many years this got sorted in any way :)

Thank you very much for all your replies. I have been away for a while. I can see i had some miss conceptions about some of the stuff. really thought drizzle was like increasing the size of the image keeping all the same proprieties. Always sounded impossible but people talk about that process like its black magic so i thought there was something else special about it. (i intended to use it in targets that are small for my FL just to do an higher quality crop). When it comes to masters i had already created my master dark, my only confusion was that all of the tutorials i see about creating master darks (with flats or not) include the dark subs to be integrated with the master bias (that i dont have). I havent read your links yet and i intend to do it this weekned but i read load of tutorials and they only stated the same. Darks integrated with Master bias. Thank you :)

I just drizzle because I be heard it's very advantageous. Basically you get a bigger image with the same quality as the original. I will read your post in detail later. I just wanted a master dark and flat so I avoid always putting 60 dark files and 60 flat files everything I do pre processing. Can I integrate the dark flats with the darks to create the master dark? The tutorial states that when I do batch preprocessing I can just put the dark flats with the darks and the software knows what to do with it.

I have started to play around with calibration frames and then things got really confusing. So i have a zwo 1600MM and i understand that no bias frames are required. The problem is all the tutorials i see teach me that to build a Master dark i need to calibrate with a superbias. If i don't have Bias frames how do i build a Master Dark? Is it just stacking all the Darks? Also how do I incorporate Dark Flats into the calibration frames. I have been doing batch pre processing and adding all the flats in the flats area and all the darks and dark flats on the darks section then all the lights and thats it. But i have to use all the files as i'm not sure how to create the masters for those. Another question I have which I'm not sure it belongs on this thread is about the drizzle data. I do dithering in all my subs so then i know how to integrate them and create a drizzle imagine but if i try batch pre-processing with the drizzle data it gives me a mismatch (probably because the scale of the image changes with drizzling). Should i do the drizzle work flow first (which includes the initial star alignment) and then calibration. Can i do batch pre-processing and then add the drizzle workflow afterwards?