GBMAPhotography supported by its audience. When you buy through links on our site, we may earn an affiliate commission. Learn more.

What is a Light Meter?

A light meter is a device used to measure the amount of light. There are two types of light meters: incident and reflective. Incident light meters measure the amount of light that falls on a subject, while reflective light meters measure the amount of light that is reflected off a subject.

It is used by photographers to determine the proper exposure for a given photograph. A light meter can be either built into the camera or separate from it.

What is a Light Meter?
Credit: shuttermuse.com

 

What is a Light Meter in Photography?

A light meter is a device used to measure the amount of light in a given area. It is most commonly used in photography to determine the proper exposure for a photograph, but can also be used in other fields such as cinematography and astronomy. There are two main types of light meters: reflected-light meters and incident-light meters.

Reflected-light meters measure the amount of light that is reflecting off of a subject, while incident-light meters measure the amount of light that is falling on a subject. Most modern cameras have built-in reflected-light meters, but incident-light meters are still useful in certain situations (for example, when taking a reading from a very dark subject). To use a reflected-light meter, you simply point it at your subject and take a reading.

Themeter will then give you an exposure value (EV) based on the amount of light it measured. This value can be used to set your camera’s aperture and shutter speed to get the desired exposure. Incident-light meters are slightly more complicated to use, but they can be very helpful in getting accurate readings from difficult subjects (such as those with high contrast or very low lighting).

To use an incident-light meter, you place it next to your subject so that it is measuring the same amount of light that will fall on your subject when you take the photo. You then point the sensor towards your camera and take a reading. The EV value from this reading can be used to set your aperture and shutter speed just like with a reflected-light meter.

While most digital cameras have built-in metering systems that do a good job of determining exposure, there are still times when using an external light meter can be helpful (or even necessary). For example, if you’re shooting in manual mode without any metering assistance from your camera, or if you’re trying to achieve a specific look with unusual lighting conditions, using a hand held light meter can help ensure accuracy and consistency.

What Does a Light Meter Do?

A light meter is a device used to measure the amount of light in a given area. It is most commonly used in photography, filmmaking, and stage lighting. The readings from a light meter can be used to determine the exposure settings for a camera or film.

Is a Light Meter Necessary?

There are two main types of light meters: reflected and Incident. Reflected light meters measure the amount of light that is reflecting off of a subject. This type of meter is most often used in situations where the photographer cannot directly point the meter at the subject, such as when taking a portrait of someone sitting down.

Incident light meters measure the amount of light that is falling on the subject. This type of meter is most often used when taking pictures outdoors, as it can be pointed directly at the subject. So, Is a Light Meter Necessary?

Many photographers would say yes, especially those who shoot in manual mode regularly. A good quality light meter can make a big difference in getting accurate exposures, especially in tricky lighting situations. However, they are not essential for everyone.

If you mainly shoot in auto or semi-auto modes, or if you tend to avoid difficult lighting conditions, then you may not need one.

Why Use a Light Meter?

What Does a Light Meter Read?

There are two types of light meters: incident and reflective. Incident meters measure the amount of light that falls on the subject, while reflective meters measure the amount of light that is reflected off the subject.

Most digital cameras have a built-in light meter that measures the amount of light coming into the camera and sets the exposure accordingly. However, there are times when you may want to use an external light meter. For example, if you’re shooting in lowlight conditions or using flash, an external meter can help you get more accurate readings.

Light meters typically display their readings in either Lux or Footcandles (fc). Lux is a metric unit of measurement, while Footcandles is an imperial unit. One lux is equal to one lumen per square metre, while one footcandle is equal to one lumen per square foot.

To use a light meter, you first need to determine what aperture and shutter speed you want to use. Once you’ve set those values, you can then take a reading with yourmeter. To do this, simply point it at your subject and press the button.

The reading will be displayed on the screen; from there, you can adjust your settings until you get the desired exposure.

Conclusion

A light meter is a device used to measure the amount of light in a scene. It is an important tool for photographers, as it helps them to determine the best exposure for their images. Light meters can be either handheld or built into the camera.