Technical Specifications

Type: Digital exposure meter for ambient and flash light
Light receiving method: Incident light and reflected light
 
Incident light: Convertible to flat diffuser (Lumisphere in down position)
Reflected light: 1° spot with display in finder
Reflected metering distance: ~ 3.3’ to infinity (~1m to infinity)
Light receptor element: 2-Silicon photo diodes (incident and reflected)

Metering modes

Ambient light: Aperture priority metering
Shutter priority metering
EV metering
Flash: With synchro cord (cumulative and non-cumulative)
Without synchro cord (cumulative and non-cumulative)
Measurement with built-in wireless flash triggering radio triggering system (cumulative and non-cumulative)

Radio Triggering

Radio technology: Complex 16/24 bit digitally coded
Range: Up to 100 feet from transmitter to receiver or transceiver
Channels: 1 to 16 channels standard, 17 to 32 "Selective Quad Triggering"

Radio wave frequency
 
USA & Canada (FCC & IC) CH1-CH16 344.00MHz
CH17-CH32 346.50 ~ 354.00MHz
Europe (EU) CH1-CH16 433.62MHz
CH17-CH32 434.22MHz

Measuring Range (ISO 100)

Ambient light: Incident light: EV-2 to EV 22.9
Reflected light: EV 1 to EV 24.4 with 1° spot viewfinder
Flash: Incident light: f/0.5 to f/161.2 (approx. f/175)
Reflected light: f/2.0 to f/161.2 (approx. f/175) with 1° spot viewfinder
Repeat Accuracy: +/- 0.1 EV or less
Calibration Constant
Incident light metering:   Lumisphere C = 340
    Retracted C = 250
Reflected light metering:   K = 12.5

Display Range

Film speed: ISO 3 to 8000 (in 1/3 steps)
Shutter Speeds: Ambient light: 30 minutes to 1/8000 seconds (in 1, 1/2 or 1/3 stop) plus 1/200, 1/400 Cine speeds: 2, 3, 4, 6, 8, 12, 16, 18, 24, 25, 30, 32, 36, 40, 48, 50, 60, 64, 72, 96, 120, 128, 150, 200, 240, 256, 300, 360 frames per second (at a 180° shutter angle)
Flash: 30 minutes to 1/1000 second (in 1, 1/2 or 1/3 stop) plus 1/75, 1/80, 1/90, 1/100, 1/200, 1/400
Aperture: f/0.5 to f/161.2 (in 1, 1/2 or 1/3 stop)
EV: EV -9.9 to EV 46.6 (in 1/10 stop)
Analog scale: Aperture: f/1.0 to f/128 (in 1/2 stop)
Shutter speed: 4 seconds to 1/4000 second (in 1/2 stop)
Filter compensation: +/- 5.0 EV (in 1/10 stop)

Other features

All-weather feature: JIS standard water resistance class 4, splash-proof type
Memory function: 9 readings on analog scale (f/stop and shutter speed) with memory recall and clear feature
Multiple Flash function: Unlimited flash readings (only one digit is displayed when the cumulative number is ten or more)
Average function: Up to 9 readings can be averaged
Brightness Difference function: +/- 9.9 EV (in 1/10 stop)
Flash analyzing function: 0 to 100% in 10% increments
Exposure Out of Range: U (underexposure) or O (overexposure) indication
Exposure compensation: +/- 9.9 EV (in 1/10 stop)
Calibration compensation: +/- 1.0 EV (in 1/10 stop)
Battery Power Indicator display: With 3 level status icon
Auto Power Off: 20 minutes after last use
Auto illumination: EV 6 and under (custom setting function)
1/4" Tripod socket: For placing meter in subject area for cordless flash measuring
Second ISO film speed setting: ISO 3 to 8000 (in 1/3 stop)
Diopter adjustment: -2.5 to 1.0d
Battery: One CR123A battery (3V Lithium dry cell); 60 hours
Operating temperature range: 14° to 122° F (-10° to 50° C)
Storage temperature range: -4° to 140° F (-20° to 60° C)
Dimensions: 3.5"W x 6.7"H x 1.9"D (90mmW x 170mmH x 48mmD)
Weight: 9.5oz (268gm) with battery

Accessories

Standard accessories supplied: Soft Case, Strap, Lens Cap, Synchro Terminal Cap, CR123A Lithium Battery, Custom Settings Chart (sticker)
Optional accessories: Lens Hood, Synchro Cord (3-way, 5 meter long - connect camera, light meter and flash), Folding Stand-Up Gray Card

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