Skip to main content

We are celebrating our 70th Anniversary! | Learn More

Sekonic L-308X FLASHMATE Light Meter

SKU: 401-305 | FREE U.S. shipping!

  • Incident Metering for Ambient & Flash
  • 40° Reflected Light Metering Photo, Cine, and HD Cine Metering Modes
  • Illuminance Measurement
  • LCD with Auto Backlight under EV5 PC Sync Terminal & Cordless Flash Option
  • Calibration compensation function Custom setting
  • Runs on One AA Battery
Write a Review


A legacy of accuracy pocket-sized and exceptionally accurate, the Flashmate L-308X light meter from Sekonic is a compact tool for metering both ambient and flash lighting as well as working in video with dedicated Cine and HD Cine modes. Equipped with a sliding lumisphere, the L-308X is able to measure ambient light as well as reflected light via a lens with a 40° reception angle. This meter also has a wide metering range; from EV0 to 19.9 at ISO 100, and can work with flash within a range of f/1.0 to f/90.9 at ISO 100. Repeat accuracy is also important when metering, which the L-308X delivers with a rating of
Keeping pace with the demands of modern image creators that move from assignment to assignment, the L-308X Series features three metering modes

Photo Mode
The L-308X offers full exposure control for photographers on-location or in the studio. Measurement data for flash and ambient light readings are clearly displayed on screen, as well as ambient EV measurement. In addition to Shutter Priority Mode, the new Aperture Priority Mode offers photographers care free measurements where depth-of-field is critical.

HD Cine Mode
Gives cinematographers a compact solution for scouting locations or as a quick go-to solution while they are on set. The L-308X lets users select from a range of frame rates and shutter angles, while measuring accurately, to within one-tenth of a stop. Also, the addition of ISO 850 greatly assists cinematographers by giving them the option of taking measurements in the native ISOs of many of today's professional cinema cameras.

Cine Mode
Designed with the professional in mind, the FLASHMATE L-308X can take on the challenges of digital cinematography. Select from the right combination of frame rates and shutter angles to achieve the exposure control necessary with one-tenth stop accuracy. Truly universal, the FLASHMATE L-308X offers Lux (lx) and foot-candle (fc) readout enabling a quick set up of lighting in a compact, affordable and easy-to use design.


Catalog Numbers:
Measuring System:
Exposure Meter
Incident light: fixed head, lumidisc removable (Option)
Reflected light: Switching, 40 deg. with built-in lens
Measuring Range and Modes:
Measuring Modes (Ambient Light):
T priority, F priority, EV, HD_CINE (T priority), CINE (f/s priority), Lux/FC
Measuring Modes (Flash light):
Cordless, Cord-in (PC)
Measuring Range at ISO100 (Ambient Incident Light):
EV0 to EV19.9
2.50 lx to 190,000 lx
0.23 fc to 17,000 fc
Measuring Range ISO100 (Ambient Reflected Light):
EV0 to EV19.9
Measuring Range (Flash Incident Light):
F1.0 to F90.9
Measuring Range (Flash Reflected Light):
F1.0 to F90.9
ISO Range:
ISO 3 to ISO 8,000 plus ISO 850
Aperture Range (Ambient Light):
F0.5 to F90.9 in 1, 1/2, 1/3 step
Aperture Range (Flash Light):
F0.5 to F90.9 in 1, 1/2, 1/3 step
Shutter Speeds Range (Ambient Light):
Photo Mode: 60s to 1/8,000s
HD_CINE Mode: 1/8s to 1/8,000s
in 1, 1/2, 1/3 step
Shutter Speeds Range (Flash Light):
1s to 1/500s in 1, 1/2, 1/3 step
Frame Rate Range (Ambient Light):
8, 12, 16, 18, 24, 25, 30, 32, 48, 50, 60, 64, 96, 100, 120, 128
Shutter Angles Range (Ambient Light):
CINE Mode: 45, 90, 180, 270, 360 deg.
EV Range (Ambient Light):
EV-6 to EV27.2
Calibration Compensation:
Yes (-1.0EV to +1.0EV)
Custom Settings:
Yes (3 custom settings)
Operating Temperature:
0 deg. C to 40 deg. C
Storage Temperature:
-20 deg. C to 60 deg. C
Power Source:
1.5V x 1 (AA battery)
B&W, Segment type
LCD Backlight:
Yes (under EV5)
Product Weight (lb):
Product Weight (kg):
Product Height (in):
Product Length (in):
Product Width (in):
Product Height (cm):
Product Length (cm):
Product Width (cm):



Sekonic L-308X FLASHMATE Light Meter Firmware