Michael Butler wrote:
I recently purchased a Ronikon autofocus 14mm 2.8 for my Canon R6 to be utilized for landscape Astrophotography. I am struggling on how to focus the Ronikon. Should I keep it in autofocus or manual focus? And if I am in manual focus, how do I determine when I am best focused? Still very much in a long learning curve. Thanks. mike
Don't know Canon, but with Sony there are a couple of manual focus aids, one magnifies and there is a color contrast that will highlight the in focus area, and you don't want to trust that infinity. For astro you do want to manually find your infinity by focusing on a bright star. Some people will mark their lens with paint or tape for this focus point. With a wide angle, as has been pointed out, depth of field means, you focus from 10 ft to infinity.