Re: 8 verses 16 bit

[Raphael Bustin <rafeb@xxxxxxxxxxxx>]

At 06:53 PM 3/4/02 -0800, David Chien wrote:


>   4) more the merrier ;)


Attach that smiley to all the rest of it, and maybe I'll buy it.

David, your whole argument reminds me of a neophyte
programmer who asked why, since the rest of his computer
was 32-bits, the designers hadn't built in a 32-bit A/D
converter for the analog inputs being measured.

In "real life," S/N ratios and noise limits make it hard to
reasonably capture more than 8-10 meaningful bits from
a CCD.  Bear in mind that the data is taken serially, at
pretty high rates, from the CCD imager, so gain-bandwidth
product is a real issue here.


rafe b.

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