14.12.17

oag night 3

A rather underwhelming target for the third test of the oag. The PHD2 gurus had recommended binning the t7. So I did. It seems to have solved the calibration at least. Tested up to 5 minute snaps...
open cluster tr3 in cassiopeia
700d + t7m on nt150l    37 frames of 120s and 300s @ ISO800