Hi Keith,

On Wed, 12 Mar 2003 13:09:51 -0800, Keith Whaley wrote:

>Speaking of which, could someone please tell me about why CCD sensor
>sizes are shown as a fraction.
>For instance, 1/2.7 inch.
>This is, of course, reducible to 0.3704". Roughly.
>Which represents what? The area of the chip? 0.3704 square inches? Or,
>inches square?

I am not 100% sure, but based on the values I have seen and other data on
the same chips I think it is the DIAGONAL of the chip in inches.

So your 1/2.7" = 0.3704" would be about 9.4 mm for us metrics :-)

>Why make a fraction out of it, whatever "it" is?

Beats me, same as still using inches does ...

Regards, JvW
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Jan van Wijk;   http://www.dfsee.com/gallery


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