Captured narrowband images. RGB version can be found here.
This is the first try of NGC281 using Hubble palette, though there is no famous magenta stars, the star color is still not correct.
This is the second try of Hubble palette. I managed to remove the magenta color and stars look more nature in this image.
Exposure: Ha – 24×20′, bias/dark/flat calibrated
Exposure: O3 – 17×20′, S2 – 7×20′ bias/dark/flat calibrated
Equipment: STF8300M + Baader Ha/O3/S2 + OAG, AT111EDT on CGEM