NEW Photoplug speed shutter for smartphone

The PhotoPlug is a small light sensitive sensor which plugs into the headphone-jack of your smartphone. Together with the Shutter-Speed App (available FREE on the iOS and Android AppStore) it transforms your smartphone into a optical shutter speed tester for analog cameras.

The Plug contains a small light-sensitive element which converts light into electrical signals. All you have to to is opening the back of your camera, place it with the lens towards a bright light source, and position the PhotoPlug behind it. When you release the shutter, the light travels through the camera shutter and hits the PhotoPlug. The PhotoPlug measures the duration of that light pulse - which is equivalent to the shutter speed of your camera.