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Re: [ATM] Banishing the diagonal

Note that a COLD camera in the light path will produce distortion as bad as
a hot one.  Try an ice cube in your Foucault path.

Stuart

----- Original Message ----- 
From: "Bob May" <bobmay@nethere.com>
To: "atmlist" <atm@atmlist.net>
Sent: Thursday, August 26, 2004 10:38 AM
Subject: Re: [ATM] Banishing the diagonal


> Considering the advances that have been done on the digital cameras, it
> won't be long before the short exposure photos will be able to be done at
> the prime focus without a secondary and not make all that heat that the
> cooled CCD cameras presently do.
> I'll also note that a good heat pipe will tend to reduce the heating
> problems of the cooled CCD camera and be able to dump the heat to the
> outside of the scope, even into a chilled heat dump, making the whole CCD
> camera actually cooler than the air around it.
> Bob May
> http://nav.to/bobmay
> bobmay@nethere.com
> NEW! http://bobmay.astronomy.net
>
>
> _______________________________________________
> ATM mailing list http://www.atmlist.net/
>


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