Hi all...
Testing out the newly arrived Astro 40D tonight.
Comparing cooling off v's cooling on.
Air Temp 24º throughout test.
Interesting to see the CMOS temperature increase by 2-3ºC during DSLR operation (wonder how much the increase is over a full night's imaging?) and also that the temp drop of approx 27º exceeds the -18º+/-2 stated by Central DS who modified the camera.
100% crops from top left of image
No processing done on images other than conversion from RAW to TIFF to JPEG.
From L to R below...
Pic #1: CMOS Temp 24.5º, ICNR OFF, Cooling OFF, iso1600, 600sec exp
Pic #2: CMOS Temp 26.5º, ICNR ON, Cooling OFF, iso1600, 600sec exp
Pic #3: CMOS Temp -2.3º, ICNR OFF, Cooling
ON, iso1600, 600sec exp
Pic #4: CMOS Temp -2.3º, ICNR ON, Cooling
ON, iso1600, 600sec exp
Happy so far!
Looking forward to winter and more dramatic temperature gradients!!!!
Comments welcome
Doug