The switch to Mirrorless?

[Derrel]

I looked at your Flickr pages; you have some very good natural world images. I would look for a camera that gives the highest technical image quality, since you are the creative engine. Much of your work looks like tripod-mounted landscape stuff, so for stills, I personally think the full-frame cameras offer higher megapixel counts, and easier-to-find-and-afford wide-angle lenses, as well as just "bigger" megapixel counts. If you like 24 million pixels on APS-C, I think you'd like 36 to 45 million pixels on full-frame even more for the sky and night-time shots, as well as for a lot of landscape stuff.

Lenses are a big issue too...you need a GOOD wide-angle zoom, and a couple of useful single focal length lenses for landscape work.

I'm not a video shooter, and have very little experience except Sony camcorder video in the 1990's and iPhone video clips...perhaps others can help you out more on the video stuff.