I was mucking around with exposure times with narrowband over the weekend, was ~75% moon phase and imaging over Melbourne CBD, absolutely blown away by the Astrodome 3nm filters! What I have learned more than anything is that I do need to work on my PEC training when doing hour long exposures. As good as 1 second multistar guiding with MaxIM DL is, without PEC training I don't think I'll ever truly get round stars at that exposure time with an EQ6 Pro.... Although I could be wrong if someone wants to correct me
Thinking about buying PEMPro as I have heard nothing but praise about it
This is a combination of single 1200, 2400 & 3600 exposures in Ha. I was slowly increasing exposure time to not only see whether I would be able to do hour long exposures without warping too much AND to see when I would become read noise limited. In Ha it seems to be near 2 hours! I was surprised from my location to say the least.
They have been bias and flat calibrated but no darks yet, my dark library does not yet extend out that high. Work in progress.
As for processing, did a light MLT, stretched and then a slight unsharp mask followed by a 5 layer HDR. About 5m work in total
Astrobin for larger image.