This little mount allows a light camera to follow the stars as they move through the sky. Exposure times of a minute are no problem. To get great astro photos you can stack several images.
small tripod, at least the top part or camera head
clamp and/ or insert with camera thread
white power cord
kitchen cabinet knob
optional: 'angle meter'
scrap wood pieces
costs: 10 - 15 E or $
Step 1: mounting for camera on timer
Electromechanical timers have a clock which rotates once in 24 hrs. The earth rotates in a similar time frame. The timer has to be positioned toward the North star and the camera will follow the sky! (the axis of rotation has to point to the North star)
The camera head has to be connected to a cap for PVC sink pipe. A small piece of PVC sink pipe has to be glued on the circular part with all the levers for switching on and off. This is the rotating part.
The cap with the camera head is NOT glued on the sink pipe. This allows the contraption to be set up without the camera attached (in the dark). When everything is ready the cap with camera can be gently pushed over the sink pipe. If you don't have a camera head in your drawer buying a mini tripod is the way to go: very cheap.