M101
Imaging information
Optics: Takahashi MT-200 ReflectorCPentax MS5 Mount
Camera: SBIG ST-2000XM, Astronomik Type2C LRGB Filter
Exposure: L=120min(15min~8)CR=20min, G=20min, B=20min(RGB:2x2binned)
Software: Stellaimage5, PhotoshopCS
Location: Yoshinaga town, Okayama Prefecture, 2006
Hoshi-Nabi Magazine