SharpCap Forums

The "Brightness" control listed in SC if you are using the native driver is very much a live parameter that can have a significant impact on images. If it's just a live parameter (as i already understood) it shouldn't be so important for final image saved, or for live image stacked saved ...

Yes, sure. I have Asi294 and i usually take flats at unity gain that is 120, as you already said.
So the lowest gain regarding the lower read noise is unity 120 gain indeed...But in general gain isn't so important for flats...

Seeing the initial dark frame I recognized this as a ASI294 and taking a cursory look at the log file this is confirmed. Normally the amp glow starburst pattern is seen in the upper right hand hand side of the frame. In the example provided the main amp glow starburst is in the lower left side and ...

A raw unprocessed image frame (either by saving the raw frames when life stacking or using the snapshot button) a raw unprocessed dark frame (press the snapshot button after you've created your master dark to save a single dark frame with the same settings) a raw unprocessed flat frame (again press...

I have the final stacked image either in .png or in .fit, but i didn't save each single individual frame. So with "unprocessed light" what do you mean? As for flat and dark, when you create them with the assisted procedure, sharpcap creates just 1 final file for dark and another final file...

I used color space setting: RAW16, but image format .png, either in live view, or in live stacking.
Could this be the reason for inefficiency of dark and flat?

Thanks robin. Obviously, i capture the dark at the same temp, gain, exposure and also focus position as the lights. The flats were captured with bias option checked, monochrome. But it seems thar their effects on the light frame during live stacking are almost nothing. Amp glow, vignetting and dust ...

Dark and flat applied: nothing changed. Heavly stretched to show better that amp glow and dust bunnies are still there. dark_flat.jpg Now i tried to use DSS to see if it is able to apply correctly the dark and flat: it cannot, amp glow and dust bunnies are still there. DSS_dark_flat.jpg So, dark and...

Hi Robin. I’ll show you some strange behaviour during live stacking, expecially when i wanted to correct and compare a live stacking image with or without dark frame and flat frame correction. It seems nothing has been corrected by nor dark frame neither flat frame during live stacking. 10 dark fram...

Thanks, Robin.

Andrea