Page 1 of 1
Disable Overscan
Posted: Fri Apr 27, 2018 9:17 am
by Oshimitsu
Is there a way to disable overscan? I've been trying to use sharpcap along with the circle overlay to center my secondary but the overscan moves the apparent center of the image.
Re: Disable Overscan
Posted: Sat Apr 28, 2018 10:02 am
by admin
Hi,
there is no way to disable overscan if the camera manufacturer has turned it on (I'm not aware of any brand that I support having controls to turn overscan on/off). However, you may be able to use a reduced resolution and set the ROI offset within the full sensor area to get a central view.
cheers,
Robin
PS. What camera model?
Re: Disable Overscan
Posted: Sat Apr 28, 2018 11:03 am
by Oshimitsu
I actually just took out a pair of calipers and my sensor is not centered. I've never noticed that... : ( why in the world would it be off center. Would that effect my guiding and polar alignment ?
its an ASI120mm usb 2.0 version. It's strictly used for guiding and polar alignment right now.
Re: Disable Overscan
Posted: Sat Apr 28, 2018 4:09 pm
by admin
Hi,
exact centering is not important for guiding or polar alignment, so you are OK there. The only thing you will have a problem with is going to be collimation.
Robin