Sekonic Speedmaster L-858D-U is the world's first multi-function, multi-brand wireless triggering light meter. It is the first of its kind capable of measuring flash duration and brief flash bursts like you find from HSS (High Speed Sync) for precision flash control.
Retractable Lumisphere & 1° Spot
The Sekonic L-858D-U has a retractable lumisphere that enables you to measure both flat and 3 dimensional objects. The 1° spot is perfect for landscape photographers and measuring the contrast of any scene.
Measure Flash Duration
The first fully functional exposure meter to measure flash duration. Now know if your flash with freeze your subject.
Up to 3 Stops
Increased Light Sensitivity
Accurately meter scenes lit by candlelight or
get the right measurement for long-exposure night photography.
Key Features:
Incident Metering for Ambient & Flash
1° Spot Metering with Viewfinder
Measuring Range: -5 to 22.9 EV (ISO 100)
Illuminance Range: 0.1 to 2,000,000 lux
Extensive Range of Cine & Video Settings
HSS Flash & Flash Duration Measurements
Flash Analyzing Function; Extended Range
2.7" Touchscreen LCD; All-Weather Design
Optional Radio Control Modules For broncolor, Elinchrom, Godox/Flashpoint, Phottix and PocketWizard
Specifications:
Metering Type
Sensor: SPD
Measuring System: Exposure Meter Incident light: Swivel head, lumidisc retractable Reflected light: Switching, 1 deg. spot
Measuring Range and Modes
Measuring Modes Ambient Light: T priority, F priority, TF priority, HD_CINE (T priority), CINE (f/s priority), Lux/FC, Cd/m2/FL
Measuring Modes Flash: Cordless, Cord-in (PC), Radio triggering, Multiple cumulative flash, HSS, Flash duration analysis.
Measuring Range (ISO 100) Ambient Incident Light: -5 to 22.9 EV
0.1 to 2,000,000 lx
0.01 to 180,000 fc
Measuring Range (ISO 100) Ambient Reflected Light: -1 to 24.4EV
0.1 to 980,000 cd/m2
0.03 to 290,000 fl
Measuring Range Flash Incident Light: -5 to 22.9 EV
0.1 to 2,000,000 lx
0.01 to 180,000 fc
Measuring Range Flash Reflected Light: -1 to 24.4EV
0.1 to 980,000 cd/m2
0.03 to 290,000 fl
ISO Range: ISO 3 to ISO 13,107,200 + ISO 857
Aperture Range (Ambient Light): F0.5 to 161.2(=128.9) in 1, 1/2, 1/3 step (Analog Scale: F1.0 to F90 in 1/3 step)
Aperture Range (Flash Light): F0.5 to 161.2(=128.9) in 1, 1/2, 1/3 step (Analog Scale: F1.0 to F90 in 1/3 step)
Shutter Speeds Range (Ambient Light): 30m to 1/64,000s in 1, 1/2, 1/3 step (Analog scale: 4s to 1/2,000s in 1/3 step)
Shutter Speeds Range (Flash Light): 30m to 1/16,000s in 1, 1/2, 1/3 step
Frame Rate Range (Ambient Light): 8 to 1,000 f/s plus other 20 settings (customized from 0.001 to 99,999.999)
Shutter Angles Range (Ambient Light): 8 to 358 deg. plus other 20 settings (customized from 0.001 to 360)
EV Range (Ambient Light): Incident light: EV-73.9 to EV103.8 Reflected light: EV-69.9 to EV105.10
Memory: Yes (9 times) both incident and reflected light
Contrast/Comparison Function: Yes (+/-9.9EV in 1/10 step)
Radio System: RT-EL/PX Elinchrom (Skyport) and Phottix (Strato II protocol) 2.4GHz (Replacable with broncolor, Godox and PocketWizard transmitter sold as separately)
Flash vs Ambient Analyzing: Yes (in 10% step)
Filter Compensation: Yes (-20 to 20EV, preset 30 type)
Exposure Compensation: Yes (-9.9 to +9.9 EV, in 0.1 step)
Calibration Compensation: Yes (-1.0 to +1.0 EV, in 0.1 step)
Custom Settings: Yes (18 custom settings)
