Peltier-Cooled DSLR Project

During an exposure, the imaging sensor of a DSLR warms up, resulting to noisy images. By cooling down the sensor, it is possible to eliminate or somehow minimize this thermal noise.

Cooling the camera’s sensor using a Peltier module

I have made a number of attempts to accomplish this with a Canon 450D and a Peltier module, however, it appears it is very difficult to implement without running into problems such as condensation and frosting.

M42 imaged with a Peltier-cooled filter-modified Canon 450D. No dark frames were used in this image. Image processed in SIRIL. The DSLR’s stock filter was replaced with a Baader UV-IR blocking filter.

Related link: View all home-brewed DIY astronomy equipment

Night Sky in Focus 
© Anthony Urbano | Bacoor, Philippines