Your canon is 16-20MP? Don't expect the same quality as a DSLR or even a newer 2k or 4k camera phone... The Hik is 3MP and I'm only using 1920x1280 or about 2.5MP... It still looks great, not 4k great, but pretty dang good.
Since the HIK 2632 is VF, you will be able to change the focal distance from 2.8 to 12mm manually... this will make it easy to get the shot you want...
I think I could get my clouds into better focus, but the focus is so sensitive, it's hard to get it right for long distances. It was really easy to get it to focus in the 2ft range, but 2 miles is a different challenge.
My 2632F is doing duty in the living room right now because it was the only cam I had running, the 2032 will be getting installed on a junction box on the porch tomorrow. Came up with a sweet trick for getting the network cable through the attic without having to crawl through fiberglass. I love and hate the varifocal, being able to zoom in and out is awesome, having to try and focus it manually every time is a bastard. I've been going back and forth in my head about whether to run at 1080p or the maxed out resolution at 20fps. On one hand 1080p is wider FOV and 30fps, on the other the maxed out resolution looks better. I am also occasionally getting some ghosting when something moves around fast in front of the 2632F set at 3mp, 20fps and 10 key frame interval, do I need to go lower on the key frame interval or is it an exposure thing?