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This section provides an overview for exposure meters as well as their applications and principles. Also, please take a look at the list of 7 exposure meter manufacturers and their company rankings. Here are the top-ranked exposure meter companies as of May, 2025: 1.SEKONIC CORPORATION, 2.Hoptek, 3.Weston.
Table of Contents
A light meter is a device that numerically measures color using Kelvin (K) as an index for the distribution of wavelengths of light emitted by an object.
Developed in the field of photography, light meters are classified as photographic exposure meters, lighting exposure meters, and other.
Related devices include color luminance meters, which simultaneously measure the luminance of light and the correlated color temperature based on the relationship between the physical properties of color and human perception, and color illuminance meters, which can measure illuminance, which indicates the brightness of irradiated light, RGB chromaticity, and color difference, which is the distance in color space.
Light meters have a variety of applications in photography, lighting, and digital screens.
They can be used to measure the color temperature of different light sources in photography, for example, sunlight at 5500 K and tungsten light at 3200 K. This information can be used as an index for correction during photography, output, and printing.
Similarly, light meters for lighting can be used to physically measure the color of artificial light sources to help reproduce the natural, inherent colors in sunlight.
It is also applied to white balance and color adjustment in the digital domain.
Among color thermometers, photographic exposure meters measure color temperature based on two colors (red and blue) from spectral data of multiple wavelengths.
The color temperature can also be measured by the amount of color temperature compensation using a filter on the light source, which uses LB (color temperature conversion) mired (microreciprocal degree) values based on the inverse of the color temperature, CC (Color Compensating) density values, etc.
The LB value is based on the fact that the photographic film will appear redder at lower color temperature settings and bluer at higher color temperatures.
The CC density value is measured from the value required to correct the three primary colors cyan, magenta, and yellow and their complementary colors red, green, and blue for natural color.
A light meter for lighting, also called a color illuminance meter, measures the correlated color temperature, which is the temperature of blackbody radiation that appears to approximate the color of the light source, based on spectral sensitivity as perceived by the human senses.
It is necessary to understand the characteristics of the exposure meter depending on the device, such as the fact that the correlated color temperature cannot represent the color green, and whether it is compatible with LEDs or not, depending on the purpose.
*Including some distributors, etc.
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Established in 2006, Testo India Pvt. Ltd., a Pune, India-based subsidiary of Testo SE & Co. KGaA, is a manufacturer and supplier specializing in measuring instruments. Complying with the ISO/IEC 17025:2017 standard set by the National Accreditation Board for Testing and Calibration Laboratories (NABL), the company produces measuring instruments for temperature, humidity, pressure, and flow (bulk fluid movement). The company also offers electrical, sound level, and nanoparticle measuring devices. These products are designed for industrial applications with regard to heating, ventilation, air conditioning, and refrigeration (HVAC-R), as well as environmental monitoring technology, in sectors like food service, retail, and pharmaceuticals.
Chino, headquartered in Tokyo, Japan, is engaged in the manufacture and sale of measurement and control equipment and instrumentation work. The company was founded in 1936 as Chino Seisakusho. Chino operates in the area of "measurement, control, and monitoring" and contributes to the development of all industrial fields. Major products include recorders, regulators, temperature sensors, data loggers, radiation thermometers, thermal image measuring devices/thermal cameras, composition meters, moisture meters, thickness meters, thyristor regulators, and fuel cell evaluation and testing devices.
GOSSEN Foto- und Lichtmesstechnik GmbH, founded in 1997 and headquartered in Germany, is a manufacturer and supplier of light and exposure measurement equipment. The company belongs to the GMC INSTRUMENTS group, a globally supplier of metrological systems, and its primary product categories include light meters, exposure meters, and color meters, designed to meet the needs of photographers, cinematographers, and professionals in the film and photography industries. Its equipment allows professionals to achieve optimal exposure, color accuracy, and lighting conditions, ensuring efficient results in visual productions.
SEKONIK specializes in lighting, optical hygrothermograph equipment, and more. Established in 1951, SEKONIK takes technology beyond the cutting edge and has been providing superior-quality of strategic optics and mechatronics for three-quarters of a century. With an equally high focus on quality, SEKONIK has obtained ISO9001 certification and strives to achieve ever greater customer satisfaction. SEKONIK is focused on environmental sustainability across supply chains in all its business processes, establishing the "Green Procurement Guidelines" in February 2008. SEKONIC offers easily navigable English and Japanese websites to help meet needs of customers around the world with an eye on protecting the environment.
Ranking as of May 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | SEKONIC CORPORATION |
42.9%
|
| 2 | Hoptek |
28.6%
|
| 3 | Weston |
14.3%
|
| 4 | GOSSEN Foto- und Lichtmesstechnik GmbH |
14.3%
|
Derivation Method
The ranking is calculated based on the click share within the exposure meter page as of May 2025. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
Japan
|
3 | 60.0% |
|
Germany
|
2 | 40.0% |
60 products found - Page 2
60 products - Page 2
Asahiko Trading Co., Ltd.
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■Summary ・PG200N is a handheld spectrometer with separate receiver. ・The light receiving part and display part can be connected and separated usi...
Asahiko Trading Co., Ltd.
160+ people viewing
Last viewed: 11 hours ago
■Summary ・MK350N Premium is a handheld spectrometer equipped with the minimum necessary functions. -Flicker can be measured in addition to the bas...
