How does one know what ISO setting, length of exposure and how many frames to take using a DSLR
Simple answer - time and experience
You need to make the most of your time outside when skies are clear and experiment with your camera on the same and different objects
After a while you will get to know your set up and camera but it takes time and plenty of it
I’ve watched a lot of YouTube videos, read books , asked a lot of questions on various forums , spoken to astronomers but the simple answer is time and experience, no way around it
YouTube clips, books , forums and talking to people give you a starting point but it’s up to you after that I’m afraid , plenty of time outside will answer your questions
This is my 3rd year at astronomy both visual and AP at nearly 60 years of age and I’m only on the first rung of a big ladder . That’s the exciting fun part of this hobby - heaps of learning , setting goals, making progress and achieving a result whether it be good or bad
Clear Skies
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