Just a few exposures between gaps in the clouds. L not used because of dust on the filter.

Object ID M3 (NGC 5272)
Details Canes Venatici
Mag. 6.2, Size 18′
Telescope 203mm RC8 at f8
Camera Atik 460Ex @-20C
Badder RGB filters
IDAS P2 LP filter
Exposure(s) R,G 2x120s, B1x120s, 2×2
Capture APT, PHD2
Processing Nebulosity 4, Photoshop