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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.
- Incident Metering for Ambient & Flash
- 1° Spot Metering with Viewfinder
- Measuring Range: -5 to 22.9 EV (ISO 100)
- Radio triggers available for Phottix, Elinchrom and PockeWizard
- Accurate Flash Duration Measurment
Measuring System
Exposure Meter<br> Incident light: Swivel head, lumidisc retractable<br>Reflected light: Switching, 1 deg. spot
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 light)
Cordless, Cord-in (PC), Radio triggering (with optional transmitters), Multiple cumulative flash, HSS, Flash duration analysis.
Measuring Range at ISO100 (Ambient Incident Light)
EV-5 to EV22.9 <br> 0.1 lx to 2,000,000 lx<br> 0.01 fc to 180,000 fc
Measuring Range ISO100 (Ambient Reflected Light)
EV-1 to EV24.4<br> 0.1 cd/m2 to 980,000 cd/m2<br> 0.03 fl to 290,000 fl
Measuring Range (Flash Incident Light)
Measuring Range (Flash Reflected Light)
ISO Range
ISO 3 to ISO 13,107,200 + ISO 850
Aperture Range (Ambient Light)
F0.5 to F161.2(=128.9) in 1, 1/2, 1/3 step<br> (Analog Scale: F1.0 to F90 in 1/3 step)
Aperture Range (Flash Light)
F0.5 to F161.2(=128.9) in 1, 1/2, 1/3 step<br> (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<br> (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
Flash Duration Range (Flash Light)
1/40s to 1/55,500 sec（25ms to 18us) from t0.1. to t0.9 (in 0.1 steps)
Frame Rate Range (Ambient Light)
1 f/s to 1,000 f/s plus other 20 settings (customized from 0.001 f/s to 99,999.999 f/s)
Shutter Angles Range (Ambient Light)
1 deg. to 358 deg. plus other 20 settings (customized from 0.001 deg. to 360 deg.)
EV Range (Ambient Light)
Incident light: EV-73.9 to EV103.8<br> Reflected light: EV-69.9 to EV105.3
Memory
Yes (9 times) <br> both incident and reflected light
Contrast/Comparison Function
Yes (+/-9.9EV in 1/10 step)
Radio System
Optional Transmitters with RT-3PW - PocketWizard (433MHz), RT-20PW - PocketWizard (344MHz), RT-EL/PX - Elinchrom EL-Skyport/Phottix (2.4GHz), RT-BR - broncolor RFS 2/2.1/2.2 and RT-GX - Godox/Flashpoint (2.4GHz)
Flash vs Ambient Analyzing
Filter Compensation
Yes (-20EV to +20EV, preset 30 type)
Exposure Compensation
Yes (-9.9EV to +9.9EV, in 0.1 step)
Calibration Compensation
Yes (-1.0EV to +1.0EV, in 0.1 step)
Custom Settings
Yes (17 custom settings 18 custom settings when transmitter sold separately is installed)
LCD
2.7" color dot matrix touch panel LCD
Sekonic Speedmaster L-858D-U Light Meter Anti-Glare Sheet for LCD Screen Lens Cap Strap Soft Case Limited 1-Year Manufacturer Warranty Registration Extension: 2-Year (US Only)
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Sekonic L-858D-U Speedmaster Light Meter
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