Re: [APML] Dynamic Range of CCD

[lkt <tan@cox.net>]

	As you have alluded to, the actual dynamic range is a function of many
variables. Here I would define dynamic range as the brightest possible
point (full well) to lowest detectable level above noise but I am sure
you can define it in other ways. I think this is the same as your
definition. Anyway, here is a link to the Kodak's data sheet on the FLI
site.

http://www.fli-cam.com/downloads/kaf3200E.pdf

On page 11 in the table, it states that the dynamic range of the
KAF3200E (ST10E) is from 72-77dB or approximately 12-12.8 bits.

Loke






Aplanatic@aol.com wrote:
> 
> Hi Jerry,
> 
> > Could one of my fine CCD brethren tell me what the exposure latitude, or
> >  dynamic range is of a typical astronomical CCD camera, preferably the
> ST-10E.
> 
> Dynamic range in electronics (my business) is usually defined as the
> difference between the clipping level (or the 1dB or 3dB compresion point)
> and the noise floor.  Is this how you define the dynamic range of an image?
> Or do you like some other definition?  There are several possible definitions
> that convey different information about the detector.
> 
> The CCD is noise limited at short exposures by readout noise and quantization
> noise.  At long exposures it is limited by sky background plus object shot
> noise, dark subtraction and flat fielding noise and inaccuracy.  The clipping
> level is, of course, the electron well depth, which depends on the detector
> and the amount of binning.
> 
> If you can define dynamic range for us, then we can estimate it under certain
> conditions and for certain cameras.
> 
> Dave Rowe
> 
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