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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1 "Chris" == Chris L Peterson writes: Chris On Mon, 18 Apr 2005 15:32:21 -0400, Roland Roberts Chris wrote: Hmmm, while a webcam based imager is unlikely to be anywhere close to optimal, I would have sworn that I heard Ron Wodaski say that the Ex View HAD chips where designed to almost not need dark frames during Saturdays' NEAF conference on CCD imaging. I'm wondering if while scribbling notes I missed some context.... Chris Their dark current is very low, but plenty high enough to Chris require dark frames for exposures longer than a few seconds Chris at ambient temperatures. But they can be cooled without Chris regulation and not normally require darks. Thanks for the info! And thanks Robin, too. That's probably the context I missed, that temperature is key, so long as they are adequately cooled, there is little dark current. regards, roland - -- PGP Key ID: 66 BC 3B CD Roland B. Roberts, PhD RL Enterprises 6818 Madeline Court Brooklyn, NY 11220 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.6 (GNU/Linux) Comment: Processed by Mailcrypt 3.5.8 http://mailcrypt.sourceforge.net/ iD8DBQFCZPvpYHKgmGibGKMRAp9AAJwONRst8wyiKfH1y+HxFw 1LAG7D2wCdH6SH GKrypyuPoYvMHWBos1Zdb08= =y+Rz -----END PGP SIGNATURE----- |
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