Originally Posted by
satman40
Big camera, little camera..
The glass makes the difference, along with the one behind the glass, with the light.
The shot is in the mind, not in the camera..
Not completely true.
Modern sensors have lower noise, and full frame sensors have lower noise than an equal APS-C.
Like @pon18n, I also do astrophotography, but with the Canon 6d. But the glass is an important factor: the 70-300L has tad sharp images to the corner even at full aperture.