Sekonic L-308X-U Specifications

• Type: Digital light meter (ambient & flash)
• Light Measurement: Incident (Lumisphere/Lumidisc) & Reflected (40° angle)
• Sensor: Silicon photodiode

Modes

• Photo Mode:
• Ambient: Shutter/Aperture Priority, EV
• Flash: Cordless/Cord modes
• HD Cine Mode:
• Shutter speed priority, Frame rate setting (8-128fps), Illuminance
• Cine Mode:
• Frame rate priority, Shutter angle (45°-360°), Illuminance

Measuring Range (ISO 100)

• Ambient Light: EV 0–19.9 (Incident/Reflected)
• Flash: f/1.0–f/90.9 (Incident/Reflected)
• Illuminance: 2.5–190,000 lx / 0.23–17,000 fc
• Repeat Accuracy: ±0.1 EV

Display & Settings

• ISO Range: 3–8,000 (1/3 steps), incl. ISO 850
• Shutter Speeds:
• Photo: 60s–1/8000s
• Flash: 1s–1/500s (+ sync speeds)
• Aperture: f/0.5–f/90.9
• EV Range: -6.0 to 27.3 (0.1-step increments)
• Backlit LCD: Auto-on below EV5

Physical

• Size: 63 × 110 × 22mm
• Weight: 80g (without battery)
• Battery: 1× AA
• Operating Temp: 0°C to +40°C

• Sekonic L-308X-U Flashmate Light Meter
• Sekonic Case for L-308 Series Light Meters
• Sekonic Strap for Most Sekonic Light Meters (Replacement)
• Sync Terminal Cap
• Limited 1-Year Manufacturer Warranty