Sekonic L-308X-U Flashmate Light Meter

BH #SEL308XU • MFR #401-305
Sekonic
Sekonic L-308X-U Flashmate Light Meter
Key Features
  • Incident Metering for Ambient & Flash
  • 40° Reflected Light Metering
  • Photo, Cine, and HD Cine Metering Modes
  • Customizable LCD with Auto Backlight
Exceptionally portable and versatile in its design, the L-308X-U Flashmate Light Meter from Sekonic is a versatile meter that blends both photo and video-oriented functions into a single unit. Equipped with a sliding lumisphere, the L-308X is capable of measuring incident or reflected light via a lens with a 40° reception angle. It offers a wide metering range from 0 to 19.9 EV at ISO 100, working with exposure times as low as 1/8000 all the way up to 60 seconds; it also has an equally broad flash range from f/1.0 to f/90.9 at ISO 100.
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Sekonic L308X-U Overview

Exceptionally portable and versatile in its design, the L-308X-U Flashmate Light Meter from Sekonic is a versatile meter that blends both photo and video-oriented functions into a single unit. Equipped with a sliding lumisphere, the L-308X is capable of measuring incident or reflected light via a lens with a 40° reception angle. It offers a wide metering range from 0 to 19.9 EV at ISO 100, working with exposure times as low as 1/8000 all the way up to 60 seconds; it also has an equally broad flash range from f/1.0 to f/90.9 at ISO 100.

The L-308X offers three specialized metering modes: a Photo mode for still shooting with aperture and shutter priority, a Cine mode for selecting frame rates between 8-128 fps with one-tenth of a stop accuracy, and an HD Cine mode for those shooting video with DSLR or mirrorless cameras. All these settings can be easily viewed on the backlit LCD display, which can be customized to your liking and automatically lights up when working at 5 EV or darker. Other features include a PC sync terminal and a cordless flash measuring option. The L-308X-U weighs approximately 3.5 oz and runs on a single AA battery.

  • Portable meter for measuring incident and reflected light, features a sliding lumisphere with a 40° reception angle
  • Measuring range of 0 to 19.9 EV at ISO 100
  • Flash measuring range of f/1.0 to f/90.9 at ISO 100; flash can be measured with PC sync terminal connection or cordlessly
  • Remarkably accurate with a rated variance of ±0.1 EV on repeat exposures
  • Exposure times ranging from 1/8000 to 60 seconds
  • ISO 850 available, useful as it matches the native ISO of some video cameras
  • Backlit LCD screen can be customized to display relevant information, automatically lights up under 5 EV
  • Shutter and aperture priority modes available in Photo mode
  • Cine mode allows you to select the frame rate, from 8 to 128 fps, as well as shutter angle with one-tenth stop accuracy
  • Runs on one AA battery

Sekonic L308X-U Specs

Meter TypeAmbient
Flash
Flash MeteringCorded
Cordless
Metering
Light Reading MethodIncident
Reflected
Measuring ModesAperture Priority
EV Metering
Frame Rate Priority
Shutter Priority
ISO Range3 to 8000 (1/3-Step Increments), Plus 850
Shutter Speed Range1/8000 to 60 Seconds
Max Flash Sync Speed1/500
Cine Speed / Shutter Angle8 to 128 fps at 45 to 360°
Measuring RangeAmbient: 0 to 19.9 EV at ISO 100
Flash: f/1 to 90.9 at ISO 100
Physical
DiffuserSpherical
Flat
DisplayGrayscale Segment LCD
InterfacePC Sync Terminal
Memory Card SlotsNone
Tripod Mounting ThreadNone
Environmental
Operating Temperature32 to 104°F / 0 to 40°C
Storage Temperature-4 to 140°F / -20 to 60°C
General
Battery1 x AA
Wireless ConnectivityNone
Dimensions2.5 x 4.3 x 0.9" / 6.4 x 10.9 x 2.3 cm
Weight3.5 oz / 99.8 g
Warranty LengthLimited 1-Year Warranty
Packaging Info
Package Weight0.45 lb
Box Dimensions (LxWxH)6.2 x 4.4 x 1.95"
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Can this unit trigger (and meter) a Godox flash ...

Can this unit trigger (and meter) a Godox flash via a PC to 3.5mm adapter cable? If so, is there any advantage to this over using the 'meter flash' mode on the meter without connecting to flash via sync cable? Thank you.
Asked by: Paolo
If your Godox flash has a 3.5mm (1/8") miniphone sync terminal, then yes, you may use a PC-to-miniphone sync cable to connect the flash to the light meter, and pressing the <TEST> button on the meter will trigger the flash and measure its output. Do note that the flash must be in Manual mode and you must set the flash output manually, as it will not measure TTL automatic flash output. If measured from the same distance, you should get the same/similar reading to using the Cordless Flash Mode.
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Asked by: FAHAD
If you have followed the directions listed inside the instruction manual, but the light meter is not responding correctly, then there may be a defect with the light meter and/or it may require warranty inspection/repair. If the light meter was purchased within the last 30 days, you may contact our Customer Service Department to inquire about returning the light meter for an exchange or a refund. If it has been over 30 days since you purchased the light meter, you would have to contact Sekonic directly. As Sekonic has recently been having issues with their website, if you are having issues with contacting Sekonic online, you may contact them directly by calling them at 914-347-3300, or you may e-mail them at [email protected]
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Date published: 2021-01-02
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