Just a picture of my baby (Genesis #52)

and another...

and my CB245

and it's 'Start Cart'

New 50gal sump with external 120v pump. The Attwood 12v bilge pump I had eventually began to make an earsplitting shrieking sound and 13gals of water heated about 0.5C per hour. Even worse I was using an ice chest which held the heat in. Hopefully this is the last sump I will ever need.

Well it was large enough, but not cold enough check out the laser chiller I have replaced it with

Light box made of foam core, Styrofoam sheet insulation, translucent white acrylic. I used for grain of wheat style lamps and a variable power supply mounted on the side. Design is per AIP4WIN. Future enhancements will include a 'deep sky/planetary' switch because useful setting for deep sky flats all occur in the first 1/10th turn of the power supply knob. If you build a light box you are going to need it to be adjustable. For this reason use dc lamps. You could use a 120v dimmer switch, but these generate a TON of RF noise. Probably a bad idea next to the camera. This box with the bulbs at full voltage is way too bright at F3.3, but about right at F60. I try to shoot my flats at around 20-30secs to avoid shutter artifacts.