M78 over 4 years

Image Description and Details :

I compiled shots of this target for as many nights as I could over the past 4 years. Each time stacking and feeling it's not enough... I'm in Michigan, Bortle 7.5. Home of "lake effect clouds" and I might get 5 clear nights over the period that this target appears in my sky. 
I shot over 4 years with 3 different scopes and 3 different cameras and combined my efforts this last spring and this was the result. 
I hope to collect more should I find another clear sky here in the winter.

Copyright: Ron Richard Kramer