Hi all,
I have been pursuing further adventures with the Antila dual-band filter whilst trying to tune my setup. This time I used the 2600MC on my little AstroTech ED65 to capture a larger object - namely the Running Chicken nebula. It's nice to be able to fit the whole thing in without resorting to mosaics. Hopefully you're not all thoroughly sick of seeing another rendition of this object.
I managed about 3.5 hours through the Antila filter and about 20 minutes of unfiltered OSC for stars before clouds moved in.
Pixel-peeping shows I still have some tilt I need to dial out but I'm as yet unsure how to approach it - perhaps a closer analysis of the subs taken on each side of the meridian?
A larger version can be viewed here:
astrobin IC2944
As always I'm happy for comments/critiques/advice. Hope you like it,
Pete.