Astrophotography is one of my favorite hobbies. To properly observe and photograph the night sky, when I have time, I travel far from Paris in regions with a Bortle scale of class 2, 3 or 4.

I use a tripod, a camera, a star tracker (rotary actuator), an anti-condensation heater and two lenses of 20 mm and 250 mm. Each photography is taken in the old fashioned way without any goto functionality.