I am not an expert on this but I think the problem is applying a continuous read voltage to the chip. It wasn't designed as a video chip.

--

Andrew Bingham wrote:
Telescope mounted CCDs are usually cooled to -30C with respect to the
ambient temperature though, and pointed at very dark sources.


On Sun, 19 Sep 2004 14:13:48 -0500, Alexander Grigolia, Jr <[EMAIL PROTECTED]> wrote:

Joe,

This time limit seems strange to me!

Amateur astronomers routinely make 30-minute, 45-minute, and longer
exposures with telescope-mounted CCD cameras!

Alex Grigolia




On Sunday, September 19, 2004, at 01:09 PM, Joseph Tainter wrote:


Page 50 of the October issue of Pop Photo has the following statement
(in reviewing the Fuji Finepix S3):

"...a black-and-white image is output through the S3 Pro's video
connector. (This signal lasts for 30 seconds to prevent CCD damage.)"

Do long exposures damage a CCD? Any of you heard anything about this?

Thanks,

Joe








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