L-RGB from this afternoon. The L (luminance channel) is actually my usual Celestron Wratten #25 Red filter.
This image was taken with a 3 x TV Barlow.
I don't know what causes that halo around the edge, it was on all the images. Although the seeing was a bit bouncy.
Hoping to image comet Lulin tonight, although the clouds may beat me, we'll see.