4 - 10 minute exposures in each of the LRGB channels.

Telescope: Celestron EdgeHD1100
Reducer: Optec Lepus 0.62 focal reducer
Camera: QSI-583wsg
Mount: Losmandy G11/Gemini with the Ovision worm upgrades
Autoguider: Starlight Xpress LodeStar attached to the camera's integrated guide port.
Processing: ImagesPlus 4.25 and Nebulosity2. Final image cropped and resized.

20110531_M51_CombLRGB-CRV-IPadj3-2.jpg