Thanks Allan, sure looks the goods.
I reckon the milled one piece back looks fantastic.
Bit pricey though.....I'd buy one in a heatbeat though
if cash was no issue.
I tried the cooler tonight on the DSI II colour.
Compared lights and darks at both ambient 22°C and
cooler at 6°C.
The first immediately obvious problem I had was the
frames at 8°C peltier cut-in are different levels to
frames at 6°C peltier cut-out.
This makes it very hard to stack a set with such a
difference. hot pixels are definitely dimmer though.
Here is a 22°C frame with four obvious hot pixels, alongside
a single 6°C frame.
The stars are constant brightness but the four hot pixels have
faded.
FWIW Peter, I found that the electronics in the fan doesn't like
being run on PWM. I had a lot of noise in my preview images.
When I ran the cooler and fan on direct DC (battery) the noise
is gone. The PWM kit does have an optional diode and capacitor to
suppress hash on the square wave output. I will try this another night.
That still doesn't explain your noise issue, you don't have the PWM
circuit.
Steve