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Kenko KCM-3100 Colour Light Meter

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  • Kenko KCM-3100 Colour Light Meter Kenko KCM-3100 Colour Light Meter

Quick Overview

  • Three Display Modes

  • Nine memory channels

  • Flash Light Readings


Availability: In stock


Kenko KCM-3100 Colour Light Meter

The Kenko KCM3100 Colour Meter allows you to measure the colour temperature in degrees Kelvin of either ambient or flash light. Measuring in degrees Kelvin is essential when determining the proper filtration based on the film's spectral sensitivity as well as the source of light. The meter is versatile and can be used for both still photography and cinema. The colour meter ensures photographers accurate colour and reproduction, which is especially useful for commercial and fashion photographers who want to accurately capture and portray their images. Using the Kenko KCM3100 allows the photographer to perfect light balance as needed.The Kenko KFM-1100 Autometer is a user-friendly and ergonomically designed light meter for reading both ambient and flash light. This simple and reliable meter is both comfortable in your hand and logically designed, with a minimum of confusing buttons.


  • Three Display Modes
  • Nine memory channels for customizing the meter to your working style
  • Ambient Light Readings
  • Flash Light Readings
  • Useful Shutter Speed Range


Three Display Modes

LB (Light Balancing) and CC (Color Compensating) Indexes

The LB index is used to select the right amber or blue LB filter needed to balance a light source. Its measurement is the mired difference between the photographic color temperature specified for the selected film type and the temperature of the light source. The CC index is the value of the required magenta or green colored CC filter.

Filter number and CC index

The Kodak Wrattan light balancing filter number (or numbers) needed, display directly in the LCD to make easy selection of amber or blue LB filter (s). The CC index is the value of the required magenta or green colored CC filter.

Photographic Color Temperature

The photographic color temperature of the light source is measured in degrees Kelvin and determined according to the spectral sensitivity of color films.

Nine memory channels for customizing the meter to your working style

Film and lighting equipment manufacturers all claim that their products are balanced to “daylight” (5500K) or “tungsten” (3400K or 3200K). However, their testing is performed in laboratories under highly controlled conditions. We live and photograph in the real word. CCD and CMOS sensors from different manufactures read and interpret color differently. Film from different manufacturers render color differently. Different batches of the same film render color differently. Different lighting equipment renders color differently. The quality and age of that equipment is also a factor. The sun cannot even be relied upon, rarely shines at a perfect (5500K) and can vary widely depending on time of day, weather and pollution in the air.

The KCM-3100s nine memory channels make coping with these challenges much more simple. Once you determine the correct filt ration for the film or equipment being used you can simply enter the difference between your filt ration and the meter reading into the meter’s memory. The meter will adjust all future reading accordingly.

Ambient Light Readings

First set the appropriate film type, choose the display mode and memory channel (if present). Set the Mode switch to “AMBI”, then simply aim the meter’s light receptor at the scene and press the measurement button. Measurement readings will be calculated and appear in the almost immediately and color temperature measurements will be taken as long as the measurement button is held down. The KCM-3100’s measuring range for ambient light is EV 3 to 16.3 using ISO 100.

Flash Light Readings

First set the appropriate film type and choose the display mode. Set flash range selctor switch to Hi or Lo depending on the output of the flash unit (s), set the shutter speed to be used (from 1 sec. to 1/500 sec.). The total flash measurement range is from f/2.8 to f/180 at ISO 100.

Flash Reading With Sync Cord

For Sync Cord setting, set the mode selector switch to “CORD” and connect the flash sync-cord to the Sync Terminal in the front of the KCM-3100, Then a temperature reading can be taken by simply pressing the Measurement button on the side of the meter. The flash will then fire, a measurement will be taken and the measurement reading will appear in the LCD display.

Flash Reading Without Sync Cord

When using a non-cord flash set-up, set the mode selector switch to “ NON.C. “ Pressing the measurement button sets the meter in stand-by mode. When the flash is fired manually, a measurement will be taken and the measurement reading will appear in the LCD display.

Analyzer Mode for Flash Light Measurements Only

By setting the shutter speed to “F”, the KCM-3100 will only display measurement readings for the light from a flash.

Useful Shutter Speed Range

A selectable range of shutter speeds from 1 full second down to a fast 1/500 of a second set in full stops for flash measurement. Lighting for Flash photography usually is made up of a combination of flash and ambient light. The KCM-3100 measures the “mixed” lighting at the selected shutter speed. After measurement the shutter speed set in the meter can be changed which effectively changes the ratio of ambient light to flash. The meter will automatically recalculate the results and display the new reading for the new shutter speed



Three-color hand-held digital color meter for color photography; Determines photographic color temperature of light sources and filtration required

Reception Method

Incident-light readings


Incident- flat diffuser, Rotating receptor head 90º right/ 180º left

Receptor Elements

3 Silicon photocells filtered red, green, blue sensitivities

Measuring Modes

AMBI- Ambient light, CORD- Flash w/sync cord,

NON-CORD- Flash without sync cord

Measuring Range

Ambient light- EV 3.0 to 16.3,

Flash- F/2.8 to 180 in two ranges 

Shutter speed


Range (for Flash)

1/500 sec. to 1 sec. in 1-stop increments


Liquid Crystal (LCD)

Display Ranges

LB index: -500 to 500 mireds,

LB_filter No. 80A ~ 80D to 85D ~81EF

CC index: 200M to 200G 

Operation Temp’ Range

14 to 122° F (-10 to 50º)


Two AA Alkaline dry-cell batteries


2.75 in (70mm) W x 6.7 in (170mm) H x 1.1 in. (28mm) D


15 to 120° (-10 to + 50 C) with 85% relative humidity


2.6 in (66mm) W x 6.9 in (175mm) H x 1.2 in. (31mm) D


6.0 oz. (200g) w/o battery

Standard Accessories

Neck strap, case

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