[Omaroo (Chris Malikoff)]

Thanks guys - cheers and thanks for that.

I've added a new layer of 2mm cork between the tunnel edges and the front mounting plate. The CCD pokes through a hole on the cork. I reckon that this will at least shield the front plate, and therefore the CCD face from the cold. I'll investigate covering the rest somehow soon. I've just screwed it all together for good, and so have applied the thermal grease to all plate surfaces as well as the back & sides of the CCD at this point (now that I know it all fits together.

The back and sides of the CCD are still in direct contact with the aluminium "finger" above it. The front plate is in front of the CCD, so I've isolated that plate with the cork. The little piece of cork that you see over the ribbon cable is just a small piece I've used at either end of the tunnel to clamp the wires down.

Pic 1: 2mm cork gasket between the tunnel fingers and the front plate to hopefully stop the front surface of the CCD from getting too cold, and to keep the front plate from generating it's share of condensation.

Pic 2: The front plate painted black, and now you can see the CCD through the aperture.

Pic 3: Stack diagram