Metering Tutorial

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A tutorial describing metering.

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METERING : 

METERING BEN HISER DIGITAL PHOTOGRAPHY

In photography, the metering mode refers to the way in which a camera determines the exposure. : 

In photography, the metering mode refers to the way in which a camera determines the exposure.

Slide 3: 

The metering mode selected on a digital camera decides how the camera’s exposure sensor will react when a photo is taken. Different metering modes determine how much light is needed and how long the shutter remains open.

Metering modes depend on the camera and the brand, but are mostly variations of the following three types: : 

Metering modes depend on the camera and the brand, but are mostly variations of the following three types: Matrix or Evaluative Metering Center-weighted Average Metering Spot (Partial) Metering

Matrix or Evaluative Metering : 

Matrix or Evaluative Metering This is probably the most complex metering mode, offering the best exposure in most circumstances. Essentially, the scene is split up into a matrix of metering zones This is probably the most complex metering mode, offering the best exposure in most circumstances.

Center-weighted Average Metering : 

Center-weighted Average Metering Probably the most common metering method implemented in nearly every digital camera and the default for those digital cameras which don't offer metering mode selection.

Spot (Partial) Metering : 

Spot (Partial) Metering Spot metering allows you to meter the subject in the center of the frame

Many pros and advanced amateurs realize when trying to meter a scene, that there are usually certain important elements to use as a reference in establishing overall exposure. Green grass is a perfect example — it normally reads very close to a true 18% middle-gray tone, making it an ideal source to measure exposure from. : 

Many pros and advanced amateurs realize when trying to meter a scene, that there are usually certain important elements to use as a reference in establishing overall exposure. Green grass is a perfect example — it normally reads very close to a true 18% middle-gray tone, making it an ideal source to measure exposure from.

References : 

References Metering By Vincent Bockaert http://en.mimi.hu/photography/metering.html Basic Photography for Journalists A Guide to Exposure Metering Modes http://www.basic-digital-photography.com/a-guide-to-exposure-metering-modes.html