NGC 1499 California

The 294 sensor is wider than the 533, mine is 11*11mm.

And tell me, how is the camera? I'm thinking of getting the 2600, but I'm also considering the 294mm, which is simply cheaper. I've heard about the issues with the 294.

Well, with my wide part being 19mm, that's almost twice as much. I could have gotten a shot like that with a one-meter Newtonian.

There's no better camera in terms of value for money. If the 2600 is considered top-tier, then the 294 is near-top. And calibration frames solve most issues. It does still show banding at short exposures, of course. For example, if you shoot M13 with a 200mm Newtonian at, say, 10-second exposures, there will be banding. But you could capture stars at 10 seconds and, say, the background at 60 seconds. Blend them together and voilà! But that's just my theory. I have an unprocessed M13 sitting here. Maybe I'll find an easier way.