Eta Carina HaRGB (Douglas Robertson)
Eta Carina HaRGB
Astro 40D (Avg Temp approx -16ºC)
Canon 400mm f5.6L @ f5.6, iso1600
Ha – 405mins total exposure time/ RGB – 185mins exp time
RGB images stopped down to around f8.8 using external aperture mask.
Ha taken through Astronomik 12nm Ha EOS clip filter