From the Loftsmith community

Twist-zoom lens barrel

A little camera lens you can build and actually twist. The black ribbed ring turns under your fingers, an orange collar sits above it, and the glass-clear window in the middle moves as you zoom. A cap snaps on with small fingers. Change how far it travels or how far you turn it.

6 parts · 93 g · 74 × 74 × 60 mm