Entries by liyun

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