Sekonic L-478D LiteMaster PRO Light Meter


  • Incident Metering for Ambient & Flash
  • Reflected 5 degree spot metering with optional viewfinder attachment
  • Cine Setting: Frame Rate & Shutter Angle
  • 2.7″ Color Touchscreen LCD
  • Flash Analyzing Function
  • Filtration Compensation Mode
  • Illuminance/Luminance Measurements
  • Contrast Function & Memory Mode
  • Custom Exposure Profiles & Calibration


Equipped with a large and intuitive 2.7″ color touchscreen LCD, the LiteMaster Pro L-478D Light Meter from Sekonic will make incident metering for ambient and flash light super simple. The major ability of this system enables complete control of the flash’s power in 0.1-step increments.

Notable for the L-478 light meter series is the large color touchscreen, which allows for fast control over settings for both ambient and flash metering. The meter is quite capable as well, able to function within a range of -2 to 22.9 EV at ISO 100. Additionally, for the current crop of hybrid shooters this model expands on its standard stills functions with two distinct video modes: Cine and HD Cine. These settings give access to frame rate selection from 1-1,000 fps as well as shutter angle settings from 1-358° as well as ISO 850 for Canon cinema cameras.

Guaranteeing the best possible performance is a suite of functions and features that will ensure users have the best tools available to them. Among these is a flash analyzing function that uses ambient and flash simultaneously to allow for shooters to dial in their preferred mix. Also, using the included Data Transfer Software users will be able to do Exposure Profiling for their camera by using the optional 5° viewfinder, showing dynamic range limits and knowing that you will have an accurate exposure. Alongside this is a Filtration Compensation Mode that allows for the meter to account for filter factor, which can now be done at up to 12 EV for landscape shooters using high-density ND filters. Other features include a contrast function for comparing brightness, a memory mode for 8 readings, and illuminance or luminance measurement.

Measuring System 

Exposure Meter Incident light: Swivel head, retractable lumisphere, Reflected light: Removable, with Optional 5 deg. VF

Measuring Modes Ambient Light 

T priority, F priority, TF priority, HD_CINE (T priority), CINE (f/s priority), Lux/FC, Cd/m2/FL

Measuring Modes Flash 

Cordless, Cord-in (PC), Multiple cumulative flash

Measuring Range (ISO 100) Ambient Incident Light 

-2 to 22.9 EV
0.63 to 2,000,000 lx
0.1 to 180,000 fc

Measuring Range (ISO 100) Ambient Reflected Light 

3 to 22.9EV
1.0 to 980,000 cd/m2
0.29 to 290,000 fl

Measuring Range Flash Incident Light 

F1.0 to F161.2(=128.9),

Measuring Range Flash Reflected Light 

F2.8 to F161.2(=128.9),

ISO Range 
ISO 3 to ISO 409,600 + ISO 850
Aperture Range (Ambient Light) 
F0.5 to 161.2(=128.9) in 1, 1/2, 1/3 step (Analog Scale: F1.0 to F90 in 1/3 step)
Aperture Range (Flash Light) 
F0.5 to 161.2(=128.9) in 1, 1/2, 1/3 step (Analog Scale: F1.0 to F90 in 1/3 step)
Shutter Speeds Range (Ambient Light) 
30m to 1/64,000s in 1, 1/2, 1/3 step (Analog scale: 4s to 1/2,000s in 1/3 step)
Shutter Speeds Range (Flash Light) 
30m to 1/1,000s in 1, 1/2, 1/3 step
Frame Rate Range (Ambient Light) 
1 to 1,000 f/s plus other 20 settings (customized from 0.001 to 9,999.999)
Shutter Angles Range (Ambient Light) 
1 to 358 deg. plus other 20 settings (customized from 0.001 to 360)
EV Range (Ambient Light) 
EV-27.9 to EV55.8
Exposure Profile 
Yes (9 times)
Contrast/Comparison Function 
Yes (+/-9.9EV in 1/10 step)
Flash vs Ambient Analyzing 
Yes (in 10% step)
Filter Compensation 
Yes (-12 to 12EV, preset 30 type)
Exposure Compensation 
Yes (-9.9 to +9.9)
Calibration Compensation 
Yes (-1.0 to +1.0)
Custom Settings 
Yes (13 custom settings)

Operating Temperature 
-10 to 50 deg. C
Storage Temperature 
-20 to 60 deg. C
Power source 
1.5V x 2 (AAA battery)
2.7″ color dot matrix touch panel LCD
LCD Backlight 
Weight (lbs.) 
Weight (KG) 
Product Length Inches 
Product Width Inches 
Product Height Inches 

  • Start up guide
  • Soft Case
  • Neck Cord
  • Anti-glare film
  • Safety Precaution
SKU: SEK-42.L-478D Category: Brand: