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- Eyepiece Magnifier
- Attaches to the camera's viewfinder eyepiece to magnify the image for easier manual focusing. Especially useful for manual focusing on subjects with fine detail.
- Effective Pixels
- The actual numbers of pixels the camera's sensor uses to make the image. The number of effective pixels is often slightly smaller than the total number of pixels, as some pixels are not used in the actual making of the image.
- Eyepiece Correction Lens
- Attaches to the viewfinder eyepiece for eyesight adjustment. Some cameras have this adjustment built-in.
- EXPEED 2
- D-SLR series EXPEED 2 is the latest iteration of Nikon's renowned digital image processing engine. Engineered to maximize performance speed, EXPEED 2 contributes to quicker response time, faster memory card access and data transfer. Find out more.
- Eyepiece Shutter
- A built-in device that prevents light from entering the camera's viewfinder eyepiece and adversely affecting the automatic exposure meter reading. Useful for unattended shooting and self-timer-operation.
- Exposure
- The total amount of light falling on the film or image sensor. Most often measured in the amount of time the light is allowed to reach the sensor, as in "a one-second exposure."
- Exabyte
- An exabyte is a unit of information equal to 1,024 petabytes or approximately 1,000,000,000,000,000,000 bytes.
- EXIF
- Exchangeable image file. The file format used by most digital cameras. A camera set to record a JPEG is actually recording an EXIF file that uses JPEG compression to compress photo data within the file.
- Eye-Fi™
- Eye-Fi™ is a trademarked brand of wireless media card, compatible with specific models of Nikon digital cameras.
- EXPEED C2
- Engineered to deliver optimal performance on each COOLPIX model, the latest evolution of Nikon's renowned digital image processing engine, EXPEED C2 helps ensure beautiful photographs of every scene you shoot. Find out more.
- Effects Mode
- Certain model Nikon D-SLRs such as the D5100 feature an Effects Mode that can be used when recording still images or D-movies. Find out more.
- Export
- The process of transferring data from one computer, file format, program or device to another.
- E-Compass
- The E-Compass is a general use compass feature that allows you to use the COOLPIX AW100's GPS as a compass, and it can assist you in finding your bearings. Find out more.
- Existing Light
- Light that exists naturally at the scene. Also known as available light, it's often taken to mean only daylight, but many photographers consider it any light or light source that happens to be at the scene.
- ED (Extra-Low Dispersion) Glass
- An optical glass developed by Nikon that is used with normal optical glass in telephoto lenses to obtain optimum correction of chromatic aberrations.
- Exposure Indicator
- A display showing the amount by which a photograph recorded at the current aperture and shutter speed will deviate from the optimal exposure selected by the camera.
- Extension Ring
- Also known as Extension Tubes. An Extension Ring is a device placed between the lens and camera body to extend the lens-to-film (or imaging sensor) distance for closer focusing. Find out more.
- EPS
- Encapsulated PostScript. A graphic file format that allows the exchange of PostScript graphic files between application programs.
- Exposure Compensation
- Settings used to modify the shutter speed and/or lens aperture recommended by the camera's light meter. Often used to produce special creative effects or to meet the scene requirements.
- EXPEED3 (D-SLR series)
- EXPEED3 is the latest iteration of Nikon's proprietary image processing system. Find out more.
- Exposure Meter
- A device that measures light to determine the combination of shutter speed and f/stop needed to make an optimum exposure.
- EV
- Exposure Value. A number that represents available combinations of shutter speed and aperture offering the same exposure effect when scene brightness remains the same.
- Eyepoint
- The farthest point on the optical axis where the entire image inside the viewfinder can be seen.
- Electronic VR
- See VR.
- EXPEED 3
- EXPEED 3 is the latest iteration of Nikon's renowned digital image processing engine, marking the culmination of years of dedication to advancing digital imaging technologies. Find out more.
- External Flash
- A flash unit that operates off the camera. It can be connected to the camera by a cable or fired wirelessly.