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Polaris Karat Flash Meter Measures Duration Share This on LinkedIn   Share This on Google   Tweet This   Forward This

15 June 2015

The Polaris Karat flash meter introduced by Omegabrandess today includes a function to read the flash duration, the first of its kind, according to the company.

The redesigned meter sports a backlit LCD display in a slimmer and lighter unit that also has an Auto ISO function to suggest ISO when you set your aperture and shutter speed.

Other functions include Flash Duration mode, Flash Ratio, Auto ISO and Contrast Function, Memory Function as well as ambient light reading in both incident and reflective modes.


Specifications for the Karat include:

Light Receiving Method Incident light and Reflected light
Sensor Silicon Photodiode
Light Receptor Incident light: Retracted Lumisphere
Reflected light: 30 degree
Receptor Head Rotating, non-interchangeable, 35 degree acceptance angle
ISO Range 3 to 8,000 in 1/3 increments
Measuring Mode Ambient light: Shutter Speed (T) Priority, Aperture (F) Priority, EV, Auto ISO
Flash light: Shutter Speed (T), Flash Duration (FD)
Measuring Range Flash light:
Incident light f1.4~90.9 (in 0.1 step)
Reflected light f1.4~90.9 (in 0.1 step)
Flash Duration (T0.5): 1/100~1/9000 (1/100~:1/100 step, 1/1000~: 1/200 step, 1/3000~:1/500 step, 1/5000~:1/1000 step)
Repeat Accuracy Plus 0.1 EV
Calibration Incident light: C=340
Constant Reflected light: K=14
Display 2.4-inch TFT-LCD Color Graphic Display
Display Range f0.5 to 90
Battery Two AA 1.5V Batteries (Alkaline, Manganese, Lithium, or Nickel Base)
Flash Range 2 to 9 flashes
Memory Measuring modes, ISO speed and shutter speed
Programming Between +0.9 to -0.9 stops using buttons
Dimensions 4.68 x 2.4 x 0.82 inches
Weight 3.5 oz.


The Polaris Karat Flash Meter lists for $329.99. Both Adorama and B&H discount it to $289.99.

For more information see the news release below.

Polaris, Omegabrandess Launch Polaris Karat Flash Meter

HAMPSTEAD, Md. -- As the exclusive distributor for Polaris products in the United States, OmegaBrandess has announced the launch of the Polaris Karat Flash Meter. The Polaris Karat offers a total redesign featuring an easy-to-read LCD and a slimmer and lighter unit.

The Polaris Karat provides the world's first flash duration function on a light meter. Measure the flash duration of your strobes with this unique function. The Karat also has an Auto ISO function. By setting your Aperture and Shutter Speed it will give you the appropriate ISO setting.

With Flash Duration mode, Flash Ratio, Auto ISO and Contrast Function, Memory Function as well as Ambient light reading in both incident and reflective the new Polaris Karat offers world-class features and performance at a fraction of the cost of comparable models. Power is supplied by two AA batteries.

Main Features

  • Flash Duration Mode
  • Auto ISO Mode
  • Flash Ratio
  • Contrast Function


The manufacturer's suggested retail price for the Polaris Karat Flash Meter is $329.99.

About Polaris

Polaris is an international company specializing in light meters and committed to developing an expanding line of original and innovative products for photographers.

About OmegaBrandess

OmegaBrandess has manufactured and distributed photographic and imaging products for over 75 years. A privately held company, OmegaBrandess supplies the photography industry with over ten thousand products from dozens of branded lines.

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