Bob Denny wrote:

> [snip]
>
> The 38.00 is the camera case temperature. The chip cooler is a
> Peltier thermoelectric device (2-stage) that cools by pumping
> heat out of the chip and into the camera case. The fins are
> supposed to dissipate that heat. The cooler is supposed to
> achieve a 40 deg C differential between the chip and case. In my
> experience, a breeze needs to be blowing (bad news!) or the
> camera must be pointing closer to horizontal for this to be
> achieved. Some folks have attached fans to their camera. I worry
> that the vibration will reduce clarity.
>
> -- Bob

I believe someone on this list mounted a muffin type fan (common in PC
chassis) on a tripod to avoid vibration from mounting the fan on the
camera. My scope is mounted on a rather large pier to which afixed one
of those flexible desk lamp stands (w/o lamp) and the muffin fan mounted
on that. this arrangement saves me from tripping over the tripod. No
virbations are transmitted to the scope. I haven't tried this with the
Meade Giant field tripod.

--
Michael Cook

Take a bite Out of Light Pollution
Support the International Dark-Sky Association
http://www.darksky.org

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