

















Sekonic Speedmaster L-858D-U Light Meter
Model: 401-858








| Package Weight | 1.45 lb |
|---|---|
| Box Dimensions (LxWxH) | 10.2 x 6.5 x 3.7" |
| Receptor Element | Silicon photo diodes |
|---|---|
| Receptor Head | Incident Light: Lumisphere convertible to 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 |
| Type | Digital light meter for flash and ambient light |
| 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% |
| Dimensions | 3.7 x 6.9 x 1.9" / 94 x 176 x 49 mm |
| Weight | 8.5 oz / 240 g without batteries |
| Shutter Angle | 1-358°, and 20 user settings from 0.001-360° |
| Radio Frequency | None |