AS!3 Not Showing Full Size Image

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MichaelTeoh
Posts: 2
Joined: Fri Jan 13, 2023 2:54 am

AS!3 Not Showing Full Size Image

#1

Post by MichaelTeoh »

Hi all, yesterday I tried using SharpCap for the first time with my QHY5III178C, and I have this issue with the image size.

The Capture Area was 3056x2048, but when I open the SER files in AS!3, the image size is reduced by half to 1528x1024.

This only happens with SERs captured with SharpCap, no problem with AVIs captured with FireCapture.

Any idea? Thanks.
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Re: AS!3 Not Showing Full Size Image

#2

Post by admin »

Hi Michael,

what is happening is that you have 2x2 binning turned on, and SharpCap is showing the resolution *before* binning in the resolution drop down, so the actual image size is 1528x1024 due to the binning.

This is one of those things that I keep meaning to fix - whether you see the 'before binning' or 'after binning' size as the capture area shown in SharpCap varies from one brand of camera to another - I have largely gone along with how the camera manufacturers have designed their camera access SDK, and that was probably a mistake. The problem is that changing it not only requires work for me to alter the code in various places and test, but will also break existing capture profiles that people have saved for their cameras that involve binning :(

It may be that you were not expecting to be in 2x2 bin mode - SharpCap can be set up to automatically restore camera settings from last time when you open a camera, so the binning setting could have been remembered from a previous session due to this. You can either turn this off permanently in the settings or hold down <CTRL> while opening the camera to skip the restore of settings that one time.

Hope this helps,

Robin
MichaelTeoh
Posts: 2
Joined: Fri Jan 13, 2023 2:54 am

Re: AS!3 Not Showing Full Size Image

#3

Post by MichaelTeoh »

Hi Robin,

Thanks for the answer. I didn't notice the binning was 2x2 as I never change them (in FireCapture) so I assumed it should be 1x1 by default. I'll tried again next time.

Cheers and thanks again.
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