This light meter offers versatile functionality for photographers and filmmakers, providing precise light readings for both flash and ambient conditions. Its intuitive 2.7" colour touchscreen and all-weather design ensure ease of use in various environments. With high-speed sync support, flash duration measurement, and optional radio triggering, it accommodates advanced lighting techniques. Its extensive range and memory recall enhance flexibility, while cinema modes cater to video production needs.
Features
The Sekonic Speedmaster L-858D Light Meter offers numerous benefits for photographers and filmmakers.
Enhanced Light Measurement
With the ability to measure both incident and reflected light, the Speedmaster L-858D provides precise readings for flash and ambient light, offering an expanded range from -5 to 22.9 EV at ISO 100.
Intuitive User Interface
A 2.7" colour touchscreen LCD ensures an intuitive and user-friendly experience for setting adjustments and viewing.
Versatile Receptor Head
The rotating and collapsible lumisphere along with a 1° spot viewfinder allows precise light measurement for varied shooting scenarios.
Advanced Flash Capabilities
Supports high-speed sync flash readings and measures flash duration from 1/40 to 1/55,500 seconds, enhancing shooting flexibility.
Durable Design
Built with an all-weather construction, the L-858D is dust and splashproof, ensuring reliability in challenging environments.
Specifications
Type
Digital light meter for flash and ambient light
Radio Frequency
None
Receptor Element
Silicon photodiodes
Receptor Head
Incident Light: Lumisphere convertible to the flat diffuser, rotates 90° right & 180° left Reflected Light: 1° spot viewfinder
Measuring Modes
Ambient Light
F priority (aperture) T priority (shutter speed) TF priority (shutter speed and aperture) HD Cine (shutter priority, FPS metering, lux, or fc) Cine (FPS metering, shutter angle setting, lux, or fc) Illuminance (lux or fc) Luminance (cd/m² or fl)
Flash Light
Cord (PC sync terminal) Cordless Radio triggering (optional) HSS Flash (cordless) Flash Duration Analysis (cord, cordless, or radio)
Measuring Range
Ambient Light (ISO 100)
Incident: -5 to 22.9 EV Reflected: -1 to 24.4 EV
Flash Light (ISO 100)
Incident: f/0.5 to f/128.9 Reflected: f/1.0 to f/128.9
Illuminance
0.01 to 180,000 fc / 0.1 to 2,000,000 lux
Luminance
0.03 to 290,000 fl / 0.1 to 980,000 cd/m²
Repeat Accuracy
0.1 EV or less (Incident light: from EV-2, Reflected light: from EV1) 0.2 EV or less (Incident light: under EV-2, Reflected light: under EV1)
ISO Range
3 to 13,107,200 in 1/3 steps, 850
Shutter Speed
Ambient Light: 1/64,000 sec to 30 min, 1/200, & 1/400 sec, in 1, 1/2, and 1/3 steps Flash Light: 1/16,000 sec to 30 min, 1/75, 1/80, 1/90, 1/100, 1/200, & 1/400 sec, in 1, 1/2, and 1/3 steps
Flash Duration
1/40 to 1/55,500 sec (25 ms to 18 us) t0.1 to t0.9
Aperture
f/0.5 to f/128.9 (in 1 step) f/0.5 to f/152.4 (in 1/2 steps) f/0.5 to f/161.2 (in 1/3 steps)
Frame Rate
1-1,000 fps, and 20 user settings from 0.001-99,999.999 fps
Shutter Angle
1-358°, and 20 user settings from 0.001-360°
EV Range
Incident Light: -73.9 to 103.8 EV Reflected Light: -69.9 to 105.3 EV
Memory Function
9 readings
Connections
1 x PC sync terminal 1 x Micro-USB port
Screen
2.7" / 6.9 cm color touchscreen LCD
Power Source
2 x AA batteries (alkaline or manganese)
Tripod Mount
Yes, 1/4"-20
Operating Conditions
Temperature: 14 to 122°F / -10 to 50°C Humidity: 0 to 85%
Storage Conditions
Temperature: -4 to 140°F / -20 to 60°C Humidity: 0 to 85%
