This is a test image with a Sigma 105mm Art lens last night. Fantastic lens but not quite convinced on the quality of the stars and am struggling to get rid of coma. This is taken at f/1.4 and has been cropped a little. 

Two frame mosaic of M81/M82 & Surrounding IFN. Each frame is approx 13 hours in LRGB. Amazing to be-able to capture so much IFN from Bortle 5 skies.

This is a small area of integrated flux nebula (IFN) near to Polaris. I just love the jellyfish like structure, it makes me think of some strange sea creature swimming through the depths of a dark ocean.
Taken over several nights during our first clear spell of the year here in the UK.