Player One’s Uranus Pro looks the perfect cameras for the galaxies, especially when used with the super sharp optics. Here is why. Believe or not, the following image was taken through 375mm focal length telescope. Well resolved! And stars are not bloated much even the image frame was cropped.
Sightron SJH-75UF + Uranus-C Pro taken by Akihiro Yamazaki
In general, the scope must be said obviously too small for M51. But how about this? This should result from the small pixel camera and small spot size optics. This proves SJH-75UF performs not only for the wide-field but also for small galaxies.
This outcome really encourages me to try to shoot galaxies through SJH-75UF.