M3 Globular Star Cluster in Canes Venatici.

Luminance: 13 x 30 seconds, DSI Pro II, IR blocker + Hutech IDAS LPS
R, G, B: 12 x 30 seconds each, DSI II, IR blocker

One-shot color raw files were dark-subtracted, debayered, upsampled, and aligned in ASIP. Luminance also was stacked in ASIP. Color was registered onto luminance using PhotoShop.