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Effective
Effective pixels - Though your digicam may claim to have 3.34 million pixels on it's CCD, some of the pixels will not be used for taking pictures. Usually those around the edge of the sensor are painted black to provide a colour balance, while others fall outside the range of the lens. Effective pixels are the ones actually used to capture the image. If the effective figure is larger than the total figure the camera interpolates or makes up, the rest of the pixels are taken from information... read more…
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E-TTL
E-TTL Short for Evaluative Through-the-Lens Mode. By Canon developed method for flash exposure measurement and -control. Contrary to TTL-flash control and -measurement, these two separate measure cells (one for the flash light and one for the ambient light) presupposes, becomes with the E-TTL the flash light also through the objective, however through the same measure cell measured as for the ambient light.This makes a precise syntonizing possible between flashlight and ambient light. With... read more…
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EVF
EVF - Electronic Viewfinder. traditionally view finders were optical, usually glass lens. With ever decreasing sizes of digital cameras there are increasing restraint on space. An EVF takes up far less space. read more…
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EXIF
The Exchangeable Image File (EXIF) format is used by nearly all digital cameras that output images as JPEGs. It enables information, such as date and time the shot was taken, plus exposure and other camera information, to be stored in the image file alongside the normal image information. These details can then be read by photo archiving software such as Piccolo, so you can get an instant view of exactly what your camera was doing when you took the shot, which is handy for trouble shooting... read more…
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Exposure
When you take a picture the light meter within the camera determines how long the shutter should be open for and how wide the aperture should be, thus obtaining the correct exposure on the CCD. If the picture is too dark, it is underexposed, whereas if it goes the other way and is too light, it is overexposed. Program Exposure - This is found on most digital cameras, programme exposure is an automatic setting by which the camera's metering system selects as appropriate aperture setting and... read more…
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Exposure
Exposure - During exposure, the sensors on the CCD are subjected to the light outside the camera for a certain time. Exposure control Describes how the shutter speed and aperture are controlled by the camera. This can be either automatic: fully automatic, programmed auto and scene program; as well as semi-automatic: Aperture Priority, Shutter Priority or manual: full control of the aperture and shutter . Exposure correction (compensation/ control) Conscious... read more…
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External flash
Some cameras have a connection using a hotshoe, that enables use of a flashgun other that the built in camera one. This enables a lot more creative freedom and control over lighting, because the flash can be positioned further away from the camera. It also helps to prevent red-eye when taking portraits. This feature is only usually available on more expensive or professional digicams. read more…
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Eye
Red-Eye. The problem of portraits than end up with the subjects eyes glowing red in a demonic way are nearly at an end. An increasing number of compacts have inbuilt technology to correct this problem, normally caused by the restriction of an ever decreasing camera body size and the built in flash being positioned too close the lens. read more…
