Re: Photon Transfer Curve

[pkuschak@xxxxxxxxxxx]

Hi Jens,

> So the readout noise is more a quantization noise.

I believe some of it may be.

> > But does what I see so far at least advance the theory that I'm never
> > in a shot-noise limited region because at maximum signal, my noise is
> > only 2.7 times the read noise?
>
> My not very professional diagram, depending on 280e readout noise and
> 500ke fullwell looks like this:
> http://freenet-homepage.de/JDierks/curve.gif
>

That drawing IS good.  It is quite similar to what I see.  So, it looks
like I just never reach the shot-noise region.

> I dont know how much saturation can flatten the slope, but 0.2?
>

I would expect the characteristic steep fall off of the curve at
saturation.

> But im quite sure that a lower noise level should give you a much
> better approximization.

Agreed. Thanks again.

Best regards,
Patrick