Sekonic L-308X-U Flashmate Light Meter

Sekonic L-308X-U Flashmate Digital Light Meter
Pocket-Sized Pocket Precision – Three-in-One Light Metering for Stills, Cine & HD Videography
The Sekonic L-308X-U Flashmate is an exceptionally portable, highly versatile digital light meter meticulously engineered to bridge the technical demands of both high-end still photography and modern video production. Blending precise incident and reflected ambient exposure tools with specialized cordless flash measurement, this ultra-compact device provides multimedia creators with accurate data to ensure perfect exposures under any lighting scenario.

Designed for quick, single-handed deployment in the field or studio, the L-308X-U features an updated, intuitive interface backed by a customizable backlit LCD. By incorporating three distinct operational modes—Photo, Cine, and HD Cine—this lightweight pocket meter easily adapts to standard camera settings, whether you are balancing studio strobes for a portrait session, configuring shutter angles on a cinema rig, or running run-and-gun documentary video on a mirrorless camera system.

Key Features & Tri-Mode Operational Versatility
Three Specialized Metering Workflows:

Photo Mode: Tailored for still shooters, offering comprehensive ambient and flash metering options with full Aperture Priority and Shutter Priority exposure readings.

HD Cine Mode: Specifically optimized for digital filmmakers using DSLR and mirrorless platforms, displaying direct exposure readouts using shutter speeds and frame rates.

Cine Mode: Built for traditional cinematography workflows, allowing users to dial in shutter angles alongside frame rates ranging from 8 to 128 fps with pinpoint one-tenth of a stop accuracy.

Dual-Incident & Reflected Light Measurement: Equipped with a built-in sliding lumisphere mechanism. Slide the lumisphere across to capture highly accurate spherical incident readings of dimensional subjects, or slide it away to measure reflected light via an integrated lens with a 40-degree reception angle.

Broad Sensitivity & Exposure Range: Measures an expansive ambient light span from 0 to 19.9 EV at ISO 100. It calculates exposure times ranging from a fast 1/8000 second down to a long 60-second exposure, while supporting an equally wide electronic flash range from f/1.0 to f/90.9.

Native ISO 850 Profile Setting: Features a dedicated ISO 850 value step profile, designed specifically to match the native baseline ISO configurations of professional cinema video cameras for seamless exposure alignment.

Dual Flash Metering Methods: Offers absolute flexibility in the studio or on location; electronic strobe values can be recorded using a direct cable connection via the physical PC Sync terminal, or analyzed cordlessly using an automated standby flash-trigger sensor mode.

Professional Precision & Compact Portability
Micro-Precise Variance Accuracy: Rated with a strict repeatability variance factor of just ±0.1 EV across repeat exposures, ensuring absolute color consistency and perfect digital sensor calibration.

Smart Backlit LCD Display: The digital readout screen can be fully customized to showcase only your relevant production metrics. For dim indoor environments or late-night street shoots, the display automatically illuminates whenever light levels drop under 5 EV.

Ultra-Lightweight Daily Carry Footprint: Weighing a mere 3.5 ounces and sliding easily into a shirt pocket, it remains an indispensable, non-intrusive addition to any production gear kit.

Efficient Single-AA Battery Power: Operates reliably on a single, universally available standard AA battery (sold separately), avoiding the need for specialized chargers or proprietary battery bricks in the field.

Technical Specifications
Meter Classification: Compact Multimedia Ambient, Cinematic & Flash Digital Light Meter

Light Reception Method: Incident (Sliding Sphere Matrix) & Reflected (Built-In Lens)

Reflected Reception Angle: 40 Degrees

Ambient Measuring Range (ISO 100): EV 0 to EV 19.9

Flash Measuring Range (ISO 100): f/1.0 to f/90.9

ISO Film Speed Range: ISO 3 to ISO 8,000 (Includes ISO 850 step value)

Shutter Speed Scale Spectrum: 1/8000 Sec to 60 Seconds (Plus Flash sync values)

Frame Rate Index Calibration: 8, 12, 16, 18, 24, 25, 30, 48, 50, 60, 64, 96, and 128 fps

Interfacing Connection Port: Standard PC Sync Terminal (Female flash cord socket)

Power Supply Requirement: 1 x Type AA 1.5V Alkaline or Lithium Battery

Dimensions (W x H x D): Approx. 2.5 x 4.3 x 0.9 inches / 63.0 x 110.0 x 22.0 mm

Weight: Approx. 3.5 oz / 99 g (Excluding battery weight)