Overscan Regions of KAF-8300 mono ?

[cpuetz]

Dear community,

I own an ATK 383 L+ and it is still working fine.
I use PixInsight for processing of my deepsky images and I can add an overscan region
for image calibration.
My question is:

Do the ATIK 383L+ (with Kodak KAF-8300 CCD) have an overscan region ?
Where can I find it or is it already "clipped" during readout of the image by the ATIK drivers ?

Kind regards,
Christoph

[scirocco1]

It seems that Atik ignored completely the overscan thing. Not sure if it matters though, maybe if you do high precision photometry but in that case you probably wouldn't use an amateur camera. QHY9 does know about overscan, though.

[NickK]

Overscan doesn't provide a full true 2D data set that darks/bias do, although if a medium res spectrograph slit is aligned to the overscan then you don't need darks.

If you're using high res spectrographs, with Eschelle gratings for example then the resulting image requires 2D correction - as the data is both distributed over the image and the lines are often curved - Christian Buil example: http://www.astrosurf.com/buil/echelle/first.htm

Personally I'd be happy to take the required darks and calibration flats required to correct for scope aberrations.