Sekonic L-308X-U Flashmate Light Meter

The Sekonic L-308X-U Flashmate is a compact handheld light meter designed to measure both ambient (incident) and flash light readings, giving photographers precise exposure information independent of a camera’s built-in metering system. It’s aimed at photographers who want a portable, straightforward metering solution for both continuous and flash-based lighting setups, particularly useful in situations where a camera’s internal meter can’t accurately measure strobe output.

The meter offers both ambient light metering, measuring available continuous light for accurate exposure readings in natural or continuous-light shooting scenarios, and flash metering, allowing photographers to measure the output of studio strobes or speedlights via a sync cord connection to determine correct exposure settings before shooting. This dual capability makes it a versatile tool for photographers moving between continuous and flash lighting within the same session.

A digital display shows exposure readings clearly, typically presenting recommended aperture and shutter speed combinations based on the metered light, allowing photographers to dial in precise camera settings rather than relying on trial-and-error exposure adjustments through chimping or test shots. The meter supports readings across a range of ISO settings, giving photographers flexibility to match the meter’s calculations to their specific camera and shooting scenario.

As part of Sekonic’s more compact, entry-level Flashmate lineup, the L-308X-U is designed to be simple and portable, featuring a retractable incident light dome (lumisphere) for standard incident readings, along with a sync cord port for direct flash metering. Its smaller size and streamlined feature set position it as an accessible option compared to Sekonic’s larger, more advanced professional meters, while still covering the core metering functions most photographers need.

Because exact specifications such as metering range, ISO range, and specific button layout can vary slightly by firmware version and generation, photographers should confirm these details against Sekonic’s current documentation for this specific model.

Key Features
– Compact handheld ambient and flash light meter
– Ambient (incident) light metering
– Flash light metering via sync cord
– Digital display for aperture/shutter speed readings
– Retractable incident light dome (lumisphere)
– Supports multiple ISO settings
– Compact, portable design (Flashmate series)