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Seconic Flash Meter L358

Exposures accurate down to a tenth-of-a-stop for both ambient and electronic flash light readings. Meter can also display shutter-speeds and apertures in half or third-stop increments.

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: Light receiving angle 54’ (Lumigrid)
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 using the optional wireless flash radio triggering system (cumulative and non-cumulative)

Measuring Range (ISO 100)
Ambient light: Incident light EV-2 to EV 22.9
Reflected light EV-2 to EV 22.9 (with 54’ Lumigrid)
Optional Spot: 1o EV5 to EV 24.4, 5o & 10o EV2 to EV 24.4
Flash: Incident light f/1.0 to f/90.9 (approx. f/124)
Reflected light f/1.0 to f/90.9 (approx. f/124) (with 54A° Lumigrid)
Optional Spot: 1o f/8.0 to f/124, 5o & 10o f/2.8 to f/124
Repeat Accuracy: +/- 0.1 EV or less
Calibration Constant: Incident light metering: Lumisphere C = 340 Retracted Lumisphere 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) also 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 degree shutter angle)
Flash: 30 minutes to 1/1000 second (in 1, 1/2 or 1/3 stop) also 1/75, 1/80, 1/90, 1/100, 1/200, 1/400
Aperture: f/1.0 to f/90.9 (in 1/10, 1/2 or 1/3 stop)
EV: EV -9.9 to EV 40.1 (in 1/10 stop)
Analog Scale: Aperture: f/1.0 to f/90 (in 1/2 stop)
Shutter speed: 2s to 4k (1/4000) (in 1/2 stop)

All-weather feature: JIS standard water resistance class 4, splash-proof type
Memory function: 9 readings
Memory clear recall function
Multiple Flash function: Up to infinity 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% in increments
Exposure Out of Range: Eu (underexposure) or Eo (overexposure) indication
Exposure compensation: Plus/Minus 9.9 EV (in 1/10 steps)
Calibration compensation: Plus/Minus 1.0 EV (in 1/10 steps)
Battery Power Indicator display: with a status symbol
Auto Power Off: 20 minutes after last use
Auto illumination: EV 6 and under
DIP switch mode selection
Second ISO film speed setting: ISO 3 to 8000 (in 1/3 stop)
Battery used: one CR123A battery (3V Lithium dry cell)
Operating temperature range: 14A° to 122A° F (-10A° to 50A°C)
Storage temperature range: -4A° to 140A° F (-20A° to 60A°C)
Dimensions: 2.4”W x 6.1”H x 1.5”D
(60mmW x 155mmH x 37mmD)
Weight: 5.4oz (153gm) with battery
Standard accessories supplied: Lumigrid, Soft case, strap, synchro terminal cap, CR123A Lithium battery