Specifications

Type:
Dual readout digital light meter for ambient and flash, incident and reflected light.
Light receiving method:
Incident light and reflected light
Incident light:
Retractable and rotatable.
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:
Simple illumination measurement (lux, foot-candle) Simple brightness measurement (foot-lambert, cd/m2) Aperture priority metering
Shutter priority metering
EV metering
Flash:
With synchro cord (cumulative and non-cumulative)
Without synchro cord (cumulative and non-cumulative)
Measurement using the optional wireless flash radio triggering system (cumulative and non-cumulative)

Radio Triggering (Optional)

Radio technology:
Complex 16/24 bit digitally coded
Range:
Up to 100 feet from transmitter to receiver
Channels:
1 to 16 channels standard, 17 to 32 “Quad Triggering”, signal, selectable individual 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
Illumination:
0.63 – 190,000 lux (2 significant digits)
0.10 – 180,000 foot-candle (2 significant digits)
Brightness:
0.25 – 190,000 cd/m2 (2 significant digits)
0.07 – 190,000 foot-lambert (2 significant digits)
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: 30 minutes to 1/8000 second (full, 1/2 or 1/3 steps) plus 1/200, 1/400 Cine speeds: 1, 2, 3, 4, 6, 8, 12, 16, 18, 24, 25, 30, 32, 36, 40, 48, 50, 60, 64, 72, 75, 90,  96, 100, 120, 125,  128, 150, 200, 240, 250, 256, 300, 360, 375, 500, 625, 750, 1000 frames per second
Flash: 30 minutes to 1/1000 second (full, 1/2 or 1/3 steps) plus 1/75, 1/80, 1/90, 1/100, 1/200 and 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)
Aperture display:
Analog scale : f/0.5 to f/128 (in 1/3 step)
Digital display: f/0.5 to f/161.2 (in fill,1/2 and 1/3 steps)
Shutter angle:
1°to 10°in 1°increments, from 15° to 270° in 5° increments plus 12°,17°,22°,144° and 172°
Shutter Speed display:
4 seconds to 1/4000 second (in 1/3 stop)
EV Range:
EV (-)9.9 to EV 46.6 (in 1/10 steps)
Filter compensation:
±5.0EV for incident and reflected independently (in 1/10 steps)
Filter factor numbers:
85, -n3, -n6, -n9, -A3, -A6 and -A9

OTHER FEATURES

All-weather feature:
Water-resistant splash-proof design. 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
Average function:
Up to 9 readings can be averaged
Brightness Difference function:
+/- 9.9EV (in 1/10 stops) flash or ambient light evaluation
Flash analyzing function:
Displays percentage of flash in total exposure in 10% increments
Multiple flash function:
Unlimited flash readings
Average function:
Average up to 9 flash and ambient readings
Exposure Out of Range:
E.u (underexposure) or E.o (overexposure) indication
Exposure compensation:
± 9.9EV for incident and reflected independently (in 1/10 steps)
Calibration compensation:
± 1.0EV for incident and reflected (in 1/10 stop)
Battery Power Indicator display:
With 3 level status icon
Auto Power Off:
Shuts down after 20 minutes of non-use
Auto illumination:
EV 6 and under for 20 sec.
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)
Custom programs:
17 custom program settings for frequently used features
Repeat accuracy:
±0.1EV or less
Dimensions:
3.5"W x 6.7"H x 1.9"D (90mmW x 170mmH x 48mmD)
Weight:
9.5oz (268gm) with battery