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Sekonic Sekonic L-358 FLASH MASTER Light Meter

SKU: 401-358 | Free U.S. shipping on orders over $100!

  • All-weather digital ambient and flash light meter
  • A simultaneous reading of flash and ambient light is analyzed. The readings are displayed in three different ways on the LCD:
    1. Combined readings of flash and ambient
    2. Percentage of flash in the total exposure
    3. Simultaneous display of flash, ambient and combined readings on the analog display
  • Retractable, Removable and Rotating Lumisphere
  • Optional radio transmitter connects with PocketWizard flash slaves
  • 9 memory banks are available in both Aperture Priority and Shutter Priority Modes, making contrast evaluation and averaging possible in both modes
  • Both shutter speeds and apertures can be displayed in full, 1/2 or 1/3 step increments to accommodate most camera manufacturer's settings
  • Dual ISO settings possible
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The Sekonic L-358 FLASH MASTER is an advanced, yet easy to operate, exposure analyzing light meter, that incorporates the latest technology in handheld meters. The L-358 features a retractable incident Lumisphere for standard or cosine corrected light readings, provides both hemispherical and narrow angle readings. Measurements can be taken in either incident or flash metering modes with accurate and convenient flash and ambient analyzing. In all electronic flash measurements, an analyzing feature simultaneously evaluates both flash and ambient light and displays the values in three ways: a) combined readings of flash and ambient, b) percentage of flash in the total exposure or c) simultaneous display of flash, ambient and combined readings on the analog scale. An easy-to-read illuminated LCD panel directly displays full, 1/2 or 1/3-stop shutter speeds or apertures and exposure/calibration compensation. Selecting settings is quick and easy with the built-in Jog wheel and cine shutter speeds up to 360 frames per second makes the L-358 a versatile tool in the most demanding lighting scenario. Optional spot finders extend the versatility of the meter with a choice of 1, 5 or 10 degree measuring angles with a viewable parallax-free viewfinder.


Catalog Numbers:
Measuring System:
Exposure Meter
Incident: retractable lumisphere
Reflected: with included reflected Lumigrid (54 deg.)
or NPFinder 1, 5, or 10 deg. (Optional)
Measuring Range and Modes:
Measuring Modes (Ambient Light):
T priority, F priority, EV, f/s priority
Measuring Modes (Flash light):
Cordless, Cord-in (PC), Radio triggering (Optional, PocketWizard), Multiple cumulative flash
Measuring Range at ISO100 (Ambient Incident Light):
EV-2 to EV22.9
Measuring Range ISO100 (Ambient Reflected Light):
EV1 to EV24.4 (with 54 degrees)
EV5 to EV 24.4 (with optional NPF 1deg.)
EV3 to EV 24.4 (with optional NPF 5deg.)
EV2 to EV 24.4 (with optional NPF 10deg.)
Measuring Range (Flash Incident Light):
F1.0 to F114.2 (=F90.9)
Measuring Range (Flash Reflected Light):
F1.0 to F114.2 (=F90.9)
ISO Range:
ISO 3 to ISO 8,000
Aperture Range (Ambient Light):
F1.0 to F114.2 (=F90.9) in 1, 1/2, 1/3 step
Aperture Range (Flash Light):
F1.0 to F114.2 (=F90.9) in 1, 1/2, 1/3 step
Shutter Speeds Range (Ambient Light):
30 min. to 1/8000 sec.
Shutter Speeds Range (Flash Light):
30 min. to 1/1000 sec.
Frame Rate Range (Ambient Light):
2 f/s to 360 f/s
EV Range (Ambient Light):
EV-9.9 to EV40.1
Yes (9 times)
Contrast/Comparison Function:
Radio System:
Optional Transmitters with RT-CTL - PocketWizard
Flash vs Ambient Analyzing:
Yes (in 10% step)
Exposure Compensation:
Yes (-9.9EV to +9.9EV)
Calibration Compensation:
Yes (-1.0EV to +1.0EV)
Custom Settings:
Yes (DIP switch)
Water Resistance:
Operating Temperature:
-10 deg. C to 50 deg. C
Storage Temperature:
-20 deg. C to 60 deg. C
Power Source:
3.0V x 1(CR123A battery)
B&W, Segment type
LCD Backlight:
Product Weight (lb):
Product Weight (kg):
Product Height (in):
Product Length (in):
Product Width (in):
Product Height (cm):
Product Length (cm):
Product Width (cm):



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