Alexander Grigolia, Jr 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
Their CCDs are cooled, are they not?
I think that's the limiter...
keith whaley
On Sunday, Sept
I thought they cooled them to reduce noise.
t
On 9/19/04 13:28, Keith Whaley wrote:
> Their CCDs are cooled, are they not?
> I think that's the limiter...
>
> keith whaley
>>
>>
>> On Sunday, September 19, 2004, at 01:09 PM, Joseph Tainter wrote:
>>
>>> Page 50 of the October issue of Pop P
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
y, September 19, 2004 2:09 PM
Subject: Damaging a CCD?
> 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 s
On 20 Sep 2004 at 19:09, Joseph Tainter wrote:
> So, gang, what's the verdict? Should one avoid time exposures with the
> *ist D?
>
> I did some last July 4 (fireworks, of course) and my D is still chugging
> along fine. I'd like to do it again.
Given that the same CCD seems to be being used i
From: William Robb
Date: Sun, 19 Sep 2004 15:08:33 -0700
-
>- Original Message -
>
>They are noisiest just before they burn up.
>Cats are the same way.
>
>William Robb
But what is WW really referring to? Can you guess?
a) Pamela And
Sent: 19/09/04 21:28:42
To: "[EMAIL PROTECTED]"<[EMAIL PROTECTED]>
Subject: Re: Damaging a CCD?
Alexander Grigolia, Jr wrote:
> Joe,
>
> This time limit seems strange to me!
>
> Amateur astronomers
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