The image of Pleiades Open Cluster (Messier 45) is a stack of 32 frames taken with Pentax K-1, Pentax SMC F* 300mm lens and Astrotracer.
Actually it is quite difficult to calibrate Astrotracer with 300mm lens. Only after several tries I was able to get 30 sec exposures. The stars are not round, but it is an effect of few worse frames which I did not exclude from stack. I think it is not bad, taking into account it was done without equatorial motorized mount, just regular tripod.
