Passive air cooling for Canon 350D - 02 November 2011
I have decided to try another modification of my Canon 350D. The first modification was an original filter exchanging, the second one is about a passive air cooling.
There are two images. The first one is a dark frame without cooling, the second one is with cooling. I used 300 second exposure time and the temperature was 4 degree of Celsius during the whole experiment.
Technical information:
Optics:
-
Exposure:
5min
Camera:
modified Canon 350D
Contents:
Dark frame without cooling
Technical information:
Optics:
-
Exposure:
5min
ISO/ASA:
1600
Camera:
modified Canon 350D
Contents:
with passive air cooling
Test version of the modification. One side is open and there is a fan attached on the other side.
As you can see from the charts below, after initial phase of cooling down there is a stabile state. The average value of noise is lower and standard deviation is lower as well. The difference is about 50%. It is good result.