Hello,
Another severe crop from a large image.
3000 frames, gain 200.
254-mm Skywatcher newtonian, red filter, Celestron Ultima Barlow, ASI178MM.
I like the natural appearance of the soil. Very low noise from the camera despite a strong processing.
The optics can't accept more magnification since the contrast quickly drops out. I won 30% more magnification relative to the ASI120MM.
The ASI178MM is very good for lunar imaging. But I won't recommend it for planets. I limit the FPS max to only 8 with my Core I3 laptop (full frame, 8 bits).
tycho_2016-02-18_newton-254_asi178mm.jpg