Exif

EXIF (Exchangeable Image File) is the official name for the metadata, the information of many details about the image, such as camera, exposure-settings and such. EXIF metadata is stored automatically by most digital cameras as a way to provide details to the photographer or viewer at a later time. Some software applications may also insert EXIF data related to the image.

Professional image editing software can often read this data, and utilize it to provide more powerful post processing effects to an image. Many consumer grade packages also include support for viewing or editing EXIF data. As EXIF metadata is stored directly into the image file itself, viewers and editors that are not EXIF aware may haphazardly delete or alter this data.

Depending on the camera, or software used there are many EXIF datafields that may be included; however the hardware/software vendor may only offer a limited selection of EXIF data such as:

• Exposure
• ISO
• Focal Length
• Lens
• Artist
• Date Time
• Flash
• White Balance
• Camera Model
• Image Description

Microsoft Windows XP includes primitive EXIF metadata viewing functionality under most conditions. By right clicking on an image, and viewing the properties, and selecting the summary tab you should be able to view this information. There may be more EXIF metadata available as well, as the summary only includes the more popular fields.

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