Some info from the site.....
Cooling a typical CCD by around 5 degree’s Celsius can halve the dark current noise generated by the CCD. This is particularly useful for Deep Sky imaging where light levels are very low and exposure times necessarily higher. Imaging with narrow band filters can also benefit from CCD cooling.
The ability of the Outback Cooler to regulate the temperature of the DSI CCD to the same temperature throughout a nights observing eliminated the need to take multiply dark frame sets as the night temperature changes. The Outback Cooler will return the CCD to the same temperature the next time you go out imaging which further reduces the need to take dark frames every session. Dark frames are valid for a given CCD at the same temperature over the same exposure time. So you can reuse your dark frames
First Problem............
Can't quite reach focus with the Nikon...........misses by about 1/4" or less distance from the CCD Chip.
Would be OK with the DSI (Mine is the pro version with the filter slide which adds about 1/2".........
I will make an adaptor so I can remove the filter slide and do mono work with this setup, or add color filters to the lenses internal filter tray for color stuff.....keep you posted.
Did look nice indoors when it did get focus on my test card about 10m away....very sharp and great contrast and using only the very centre portion of the image projected by the lens, it was tack sharp from edge to edge at even the highest res chart...........very promissing
