Quote:
Originally Posted by mithrandir
Narayan, PHD with my ST80 and Atik guide cam has always needed cal step size of about 1000 to get the recommended ~15 steps.
Are you using v1 or v2 of PHD?
You a sure it isn't trying to guide on a hot pixel? Dark frames work better with some cameras than others so you could trial both ways.
Slightly defocused stars work better than absolutely sharp ones.
|
Andrew I am actually referring not to the calibration step but the actual pulse duration... As I said I had to crank it up heaps and then got " spiky " guiding graph rather than the nice smooth graph without too much oscillation that one hopes for. Never had to do this before in the 10 years or so I have been using PHD so wondering about what might cause this?all of a sudden,not a new scope or anything
Calibration works just fine evèn at default though like you I set it at 1000 just to cut down the number of steps. And no it's not a hot pixel or a saturated star . It was actually guiding just now as smoothly as I hope to achieve
