Introducing the PhotoPlug – Easy Shutter Speed Testing for Your Smartphone - Silvergrain Classics
ALVANDI Shutter Speed Tester
Filmomat - The PhotoPlug Shutter-Speed Tester. Available in the Filmomat online store and at Fotoimpex :) www.filmomat.eu/shop https://www.fotoimpex.de/shop/kameras-zubehoer/filmomat-photoplug-verschlusszeiten- tester.html | Facebook
Tindie Blog | Configurable Professional Quality Camera Tester Kit!