Quote:
Originally Posted by The_bluester
I keep looking at this image as an indication of what they might look like in practice, and that is with 120 second subs, if that was achievable in practice it could be a pretty productive camera when you might see 40-45 subs an hour. It does indicate however that the Baader filters may produce some halos.
https://www.astrobin.com/full/irbmwz/0/ |
Those halos are quite minor. About 4 or 5 years ago when the KAF16803 sensor was becoming popular all of a sudden normal filters were seen to be not good enough and often had halos.
Gen 11 versions came out with anti reflection coatings that stopped these.
They are reflections between the inevitable flattener or corrector of APOs or mirrored scopes.
These days most scopes have flatteners or correctors and they can cause reflections.
The old Baaders caused halos but I thought they were on top of that with their latest models.
I think a real strength of this camera is to leverage the 61mp. I read a post where one person was binning 4x4 to get maximum SNR but still had decent resolution. File sizes become much more manageable as well.
I am not sure lots of exposures 45 seconds is the best way to handle this camera. I am finding with my ASI183mm 300 seconds gain 53 works well for LRGB and 10 mins gain 111 works for narrowband. I am wondering though if I should do a short exposure run to get more star colours which are lacking compared to my CCD camera's images.
Greg.