Hi All,
Its been a fair while since I have posted, we have had some pretty horrible cloudy nights here on the south coast, 2 nights ago I saw the stars for the first time since christmas!!
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I have a question about imaging, I have scoured the forums to find a definitive answer, but the question probably doesn't have an exact answer.
Is there a formula for astrophotography? for example Bright nebulae: 20 x 3minute subs @ 800ISO, or galaxies: 20 x 5 minute subs @ 1600iso?
I am asking this question because I would like to compile a quick reference guide for astrophotography, so that I know if im shooting M42 i know exactly what I setting i should be using. I am guessing a lot of the camera settings are dependent on what scope you are using and any accessories etc
I just seem to find my images are either too dark, not enough detail, or ive blown out the core of the nebula. See attached picture of NGC253. (only an example , no darks/flats)
Im using a 925CGEM + Orion 80st Guide Scope and QHY5 + F6.3 focal reducer/corrector and a Canon 600D
Because my clear nights here have been so far and in between I would love some kind of basic rule so I can maximize my time in the observatory.
It could well also be my processing abilities, which are lacking some what. Post processing after registax 6 i only use Lightroom to expose and adjust colours.
Anyway, any input will be greatly appreciated!
A huge thank you in advance
