Chris L Peterson wrote:

On Thu, 04 Mar 2004 06:03:03 GMT, "W. Watson" wrote:


Is there some standard amount of exposure time for a "video camera/capture card"
freeze frame? If so, what is it? I have a Supercircuits PC23C and a Hauppauge WinTV
GO capture card.


No. Most video cameras will adjust their exposure time automatically, typically
from a maximum of 1/30 second to a minimum of 1/1000 of a second, or shorter.
The frame is captured over 1/30 second regardless of the exposure time. This is
the behavior of the PC23C unless you have modified it for manual exposure
control (a simple mod, highly recommended if you use the camera for astronomical
imaging).

_________________________________________________

Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com
Yes, I modified it per Paul Goelz's web page instructions. I take it then that the
mod standarized it to roughly 1/30th of a second for a single frame? If so, then I
would guess if my software is set to shoot for say 10 frames/sec. in video mode, then
each shot is roughtly 1/10th of a second--less for download considerations.

--
Wayne T. Watson (121.015 Deg. W, 39.262 Deg. N, 2,701 feet, Nevada City, CA)
-- GMT-8 hr std. time, RJ Rcvr 39° 8' 0" N, 121° 1' 0" W

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