I was wondering if anyone else has had this experience. I was looking through my new SkyWatcher 72mm ED scope, basically an F/6 ED optic. It was very windy on the ground and the stars were twinkling like mad, so I avoided all high power and cruised around the Albireo way with my new APM UFF 30mm. When I first put the eyepiece into the scope, the field curvature seemed horrible to me. The outside of the field could be brought to focus, but only at the expense of the center of field. I began to feel a little depressed, because the SW 72 ED is an F/6 optic, and those guys are gonna have some field curvature, but this seemed ridiculous. Still, I focused for the center and began cruising around the Albireo/Vulpecula stellar neighborhood. The more I did, the nicer the field seemed to be. I could still see some field curvature, but it wasn't bad at all. I had to refocus for the edge to get completely clean, but if I focused between the center and edge, everything seemed to look quite nice. I could get the center or edge a bit tighter with some fine focus adjustment, but basically I found the view acceptable. Can a person accommodate over time? Can one start out stuck, then get okay after a while? It was a strange, though oddly pleasant experience, but I was wondering if accommodation for FC can be acquired in a few minutes of viewing? Strange question, but that was my experience. Anyone else have this happen to them, or hear of it?
Edited by CollinofAlabama, 09 December 2019 - 01:11 PM.