Quote:
Originally Posted by luka
Marc, I was not aware that Ha (narrowband) will exacerbate the tilt/collimation problems. I suspect that there is tilt in my system but it never bothered me before. I am using a refractor so collimation is not an issue.
|
Sorry, what I meant is that because you get tighter stars in HA you tend to see bad star shapes better. When they're bloated and blurrier the seagull shape can get smeared so it's not as obvious off axis. Tilt can definitely do this so squaring the camera is important. To diagnose you could try to rotate the camera in increments of 90 degrees and do a short exposure and see if the flaring follows or not. Could be the sensor or the whole camera in the drawtube.