Despite my colour blindness.. I've attempted a Ha:OSC (100min:100min) blend of Eta carine..
Ha: 4x25min - taken at 480mm with Orion SS Pro - Yesterday.
OSC : 10x10min - Taken at 714mm with QHY8 - December 08
The OSC data was a lot closer in, so the field of view is heavily reduced, and the OSC data was also taken with no field flattener, so the outter edges show a little coma in the stars, the Ha has worked wonders in bringing out more detail.. I've posted the original OSC shot first for comparison, followed by the Ha Ha+R G B shot..
Cheers for looking..
Alex.
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