Composite images white+Halpha Orion and Eta Carinae
Yesterday night (Thu morning AEDT) I took shots of the sky from Tulbagh, Western Cape, South Africa.
I used the 6d (not modded) with Canon EF 85mm f/1,8 squeezed to f/2.5, ISO 1600, 20 frames of each 30 seconds.
And in both cases after shooting the 'white' frames I screwed in a Baader 7nm wide Halpha, switched ISO to 6400, and made 8 frames of 2 minutes to compensate the attenuated Halpha in an unmodded EOS.
Both sets I stacked in DSS, put the Halpha 'autosave.tif' as an overlay layer in Photoshop, did some finetuning and got this result.
1: Orion constellation
2. Eta Carinae and Running Chicken.
