Quote:
Originally Posted by pkinchington
Hi Marc, the blue I am referring to was very pronounced and was located towards the centre of eta carina.
At the moment I can't afford a telescope so I am using my 300mm f2.8 camera lens (set at f3.5). Can I use a flattener with a camera lens?
Cheers Kanga (Peter).
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Research ‘flats’ for Astrophotography.
Basically taken of a lighted background....not a flattener to be placed in image train. You can do them on your computer screen. It evens out the field