Sekonic Speedmaster L-858D-U Light Meter – Professional Incident, Spot & Flash Meter
The Ultimate Light Meter for Photographers and Filmmakers
The Sekonic Speedmaster L-858D-U is a high-performance light meter designed to meet the demands of professional photographers, cinematographers, and videographers. With advanced incident, reflected, and spot metering, plus expanded flash and ambient light measurement capabilities, it’s a versatile tool for achieving perfect exposure in any environment.
Key Features
- Incident & Reflected Light Metering – Accurate readings for both ambient and flash lighting.
- 1° Spot Metering with Viewfinder – Precision metering for selective exposure control.
- Wide Measuring Range – -5 to 22.9 EV (ISO 100); illuminance from 0.1 to 2,000,000 lux.
- Cine & Video Modes – Extensive settings tailored for digital cinema and video workflows.
- HSS Flash & Flash Duration Measurement – Capture fast-moving subjects with accuracy.
- Flash Analyzing Function – Measure ambient-to-flash ratio with extended range support.
- Intuitive 2.7″ Color Touchscreen – Fast, user-friendly operation with clear visuals.
- All-Weather Design – Durable construction for reliable use on location and in studios.
- Optional Radio Control Modules – Expand functionality with wireless flash triggering.
- Why Choose the Sekonic Speedmaster L-858D-U?
The Sekonic L-858D-U Speedmaster is more than just a light meter—it’s a precision exposure tool for professionals who demand control and accuracy. Whether you’re shooting portraits, high-speed action, or cinematic productions, its advanced measurement options and intuitive touchscreen interface make it an essential part of any professional workflow.





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