Full well depth of QHY8L

[mariner10]

Hi,
I'm trying to work out the optimum ADU for my QHY8L so I can take some decent flats.
Does anybody know what the full well depth is for the QHY8L? I can't see it in the specs I have for the camera.
Thanks.

Steve

[LewisM]

I'd like to know how long exposure/brightness of a flat box for an SBIG STF-8300C, shooting through an 85mm/f/5.3 refractor...

I know there is a way to calculate the ADU for a light per exposure time etc in MaxIM/PI, but can someone walk us through it step by step?

[billdan]

Interesting that the full well depth was never published.

The full well depth of the original QHY8 with 7.8 micron pixels is 25,000e, so I would assume yours would be the same as it has the same size pixels.

Steve and Lewis - As both of your cameras are 16 bit and full saturation is 65,550 ADU, you would set your ADU for flats around the 21,000 to 25,000 range.

EDIT: Just had a look at the data sheet from Sony for the ICX413AQ chip (as used in the QHY8L) and there is no mention of full well.

[mariner10]

Thanks so very much, appreciate your time and the answer.
I'll try to recover the hair I've pulled out and somehow re-attach it.

[LewisM]

Thanks Bill.

Experimenting I go....