I do some nightphotography on my 5D3. It is still amateurish because one always can improve.
After having seen this tutoring videoCurves and Levels - Easy 123 - Photoshop Astrophotography Tutorial
I am keen to do this myself. It is about curves and levels in Photoshop to enhance the data. My version is CS 2.
But there arise a few questions:
I downloaded deep sky stacker. stacked seven colour pictures: copies of the same photograph to give it a try.
This guy in the video starts with a greyscaled
stacked picture. Others I've seen worked at RGB mode.
How is he getting a greyscale type of stacked photographs as mine turned out to be colour? It never looked like his in the beginning. Here's my slightly enhanced original picture Z96A3724bMASTER
by Peter Hauri
, on Flickr
I guess it kinda deals with RGB channels. But I have no clue how to do it, even my curves and levels don't react the same way as his.
Is it a presetting in PS which he applied without mentioning it?
How can I do it in CS 2?
Thanks for any technical help.
Just another question: at what ISOs are you taking nightsky photographs for stacking purposes?
I currently take them applying 600 rule at ISO 6400 to 12800, f/8 with a 16-35 USM II lens.
Cheers and thanks in advance, Peter