Hi guys, So in my attempts to keep pushing the boundaries of my modified EPM2 and lower the amount of noise during long exposure astrophotography, I have decided to build a thermoelectric cooling box and I wanted to share my experiences with it in case this could be of benefit for anybody else too. It is basically a box built out of aluminum sheet that is wrapped with an insulating material. A thermoelectric peltier cooler is then attached to this box with the ceramic plate touching the outside of the box transferring cold into the inside of the box. There are two heat sinks, one on the outside dissipating the heat and one on the inside lowering the ambient temperature within inside the cooling box. For my first test, I did set the camera to the settings I would be actually using them during my sessions...3 minutes at ISO 800. I then took a dark frame at room temperature (it was actually 70F inside my house) and then I moved the equipment outside and started taking 3 minute exposures with 4 minute intervals and timing and writing down the temperature drop every 15 minutes and here is what I noticed: - Temperature inside house - 70F - Temperature outside - 50F - At 15 min - temperature inside the box dropped to 40F - At 30 min - temperature inside the box dropped to 36F - At 45 min - temperature inside the box dropped to 34F - At 60 min - temperature inside the box dropped to 32F Attached are the pictures of the cooling box as well as a dark frame taken at 70F and at 32F in order to evaluate the noise level (both cropped a lot in order to show detail). It is clear to me that this is a promising project and well worth it specially in the summer time, but I may have to purchase another ceramic plate that can drop the ambient temperature by more than 20F. Cheers!