Raynox

An electronic meter for reflective measurement with angle of view 50°, with CdS sensor, and with analog exposure calculator for film speeds ASA 8 to 3200, shutter speeds 16 to 1/2000 seconds and apertures ƒ1 to ƒ32. The measurable light values 1 to 19 EV are represented as letters A to O on the instrument scale which is switchable from the lower scale A to H to the upper scale upto O. It needed a 1,3V Mercury cell (type 625). image by Hans Kerensky (Image rights)

Raynox Electronics, Corp. was a Japanese maker of light meters.