DIY Portable Star Tracker

I have built a lightweight portable DIY star tracker for DSLRs. It uses a worm drive from an unused equatorial mount I have found in a local surplus shop. I used a geared stepper motor and an Arduino controller to spin the RA axis at the correct tracking rate to match the apparent movement of the sky. The setup was housed in a metal box that fits in a small camera bag. It mounts on a standard camera tripod. I have tested it to track accurately with a DSLR with an 80 mm to 210 mm telephoto lens.

Lightweight portable DIY star tracker for DSLRs

Related links:
DIY Ultra-Portable Tracker
DIY OnStep Go-To Telescope Controller

Night Sky in Focus 
© Anthony Urbano | Bacoor, Philippines

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