rickwayne

Y'know, sensor size is not in itself an advantage. You want to match your desired FOV to the sensor size, yes, but angular pixel size is also in play. I deliberately chose a smaller sensor for my first dedicated astro camera precisely so that smaller objects would more nearly fill the frame, while the smaller pixels helped address the undersampling that my DSLR rig gives me. Smaller-pixel sensors are often noisier than bigger-pixel ones, true, but between today's sensors and stacking, that's a lot less of a problem than it used to be.