
Type: Digital exposure meter for ambient and flash light
Light receiving method: Incident light and reflected light
Incident light: Convertible to flat diffuser (Lumisphere slides to expose Lumidisc)
Reflected light: Light receiving angle 40° (Lumigrid)
Light receptor element: Silicon photo diode
Metering modes
Ambient light: Shutter priority metering EV metering
Flash: With synchro cord
Without synchro cord
Measuring Range (ISO 100)
Ambient light: Incident light EV 0 to EV 19.9
Reflected light EV 0 to EV 19.9 (with 40° Lumigrid)
Flash: Incident light f/1.4 to f/90.9 (approx. f/124)
Reflected light f/1.4 to f/90.9 (approx. f/124) with 40° Lumigrid
Repeat Accuracy: +/- 0.1 EV or less
Calibration Constant: Incident light metering: Lumisphere C = 340 Lumidisc C = 250
Reflected light metering: K = 12.5
Display Range
Film speed: ISO 3 to 8000 (in 1/3 steps)
Shutter Speeds
Ambient light: 60 sec
Specs taken From Sekonic.com