(meteorobs) Heat required to prevent dew in a box for allsky camera

[James Beauchamp]

I have all the parts on hand to make an all aluminum one, including a better heater.  Just need to find an equivelant camera unit.  Very few options out there.

Sent from my iPhone

On Nov 22, 2014, at 7:25 PM, Jim Wooddell <nf114ec at npgcable.com> wrote:

Hi All,

I would have never designed a system like Sandia did.  However, it works 
very well with a bunch in service in many parts of the world.
It can be improved, but I would wager any design can be improved.
We could argue this all day long! Hard to argue with a network
of cameras that simply works, is available to the public 24/7, etc.

Air circulation in the camera mount is good and is forced circulation 
from on side to the other.  I had reduced the temperature control 
setting at install and (knock on wood) have never had any issues.

My issue was/is with the false pretense statements made that the camera 
system is unsafe.  That's like saying your neighborhood street lights or 
the wires feeding houses are unsafe.  Just nuts with nothing I know of 
to back up the claims.

Jim


> On 11/22/2014 11:01 AM, Chris Peterson wrote:
> The Sandia design isn't the best. In fact, for a video system (as
> opposed to the DSLR case that started this discussion) there is no need
> for heaters at all. The electronics in the enclosure generates enough
> waste heat to keep the dome dew and frost free under the worst of
> conditions. All that is required is a simple internal circulation system.
> 
> Chris
> 
> *******************************
> Chris L Peterson
> Cloudbait Observatory
> http://www.cloudbait.com

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