ED Glass (Extra-low Dispersion Glass): A type of optical glass used in some lenses to minimize chromatic aberration and improve image quality.
Edge Enhancement: A post-processing technique that enhances the apparent sharpness of edges in an image, often used to bring out details and improve overall image clarity.
Edge-to-Edge Sharpness: The degree to which an image is sharp and focused from one edge to the other, without any noticeable blur or softness.
Edging: A darkroom technique involving the application of a colored border or vignette around the edges of a photographic print.
Effective Pixels: The number of pixels on an image sensor that contribute to the final image, excluding any pixels used for image stabilization or other purposes.
Ektachrome: A brand of color reversal film known for its vibrant and saturated colors, often used in slide projection or for creating transparencies.
Electronic Aperture: An electronically controlled aperture found in some modern lenses that allows for precise and silent adjustment of the aperture size.
Electronic Flash: A type of artificial light source that produces a burst of high-intensity light to illuminate a scene when capturing photographs.
Electronic Shutter: A shutter mechanism in some digital cameras that uses electronic signals to control the opening and closing of the sensor’s pixels, eliminating the need for a physical shutter.
Electronic Viewfinder (EVF): A digital display that shows a real-time preview of the scene through the camera’s lens.
Emphasis: A compositional technique where a specific element or subject in the photograph is emphasized or made more prominent through various visual means.
Emulsion Side: The side of a photographic film or paper where the light-sensitive emulsion layer is applied, typically indicated by markings or notches for proper handling and loading.
Emulsion: A light-sensitive coating found on traditional photographic film or paper, containing silver halide crystals that react to light.
Encaustic Photography: A technique where pigmented hot wax is applied to photographs to create a unique artistic effect, often resulting in a textured, painterly appearance.
Enlarger: A device used in traditional darkroom printing to project and enlarge a photographic negative onto light-sensitive paper.
Entry-Level Camera: A camera designed for beginners or hobbyists, typically offering basic features and controls at an affordable price point.
Environmental Photography: The practice of capturing images that showcase the relationship between a subject and its surroundings, often focusing on natural landscapes, urban environments, or the impact of human activities on the environment.
Environmental Portrait: A portrait photograph that captures the subject within their natural surroundings or environment, providing context and telling a story about the person.
Equatorial Mount: A type of mount used in astro photography that aligns the camera or telescope with the Earth’s rotation, allowing for long-exposure photography of celestial objects.
Equivalence: A concept that compares different camera systems with varying sensor sizes to determine equivalent exposure settings, depth of field, and field of view.
Equivalent Focal Length: The focal length of a lens on a crop sensor camera that would produce the same field of view as a given focal length on a full-frame camera.
Ethereal: A descriptive term used to describe a photograph with a delicate, otherworldly, or dreamlike quality.
E-TTL (Evaluative Through-The-Lens): A metering system used by Canon cameras to determine the optimal flash exposure through the lens.
EV (Exposure Value): A numerical representation of the exposure settings, combining aperture, shutter speed, and ISO in a standardized scale.
EV Compensation: A feature that allows the adjustment of the exposure value (EV) from the metered exposure to achieve the desired brightness level.
EV Step Size: The increment used to adjust the exposure settings, typically measured in 1/3 or 1/2 stops.
EV Steps: The incremental changes in exposure value (EV) when adjusting the exposure settings, typically in 1/3 or 1/2-stop increments.
EV Steps: The incremental changes in exposure value, typically represented as 1/3 or 1/2 stops, used for adjusting exposure settings.
EVF Diopter Adjustment: A control on electronic viewfinders (EVFs) that allows the photographer to adjust the focus of the viewfinder to match their eyesight.
EVF Lag: The delay or latency between the camera’s electronic viewfinder (EVF) image and the actual scene, which can affect the timing of capturing fast-moving subjects.
EVF Magnification: The degree to which the image in an electronic viewfinder (EVF) appears magnified, typically expressed as a ratio (e.g., 0.7x, 1.2x).
EVF Refresh Rate: The frequency at which the electronic viewfinder updates the displayed image, measured in frames per second (fps). A higher refresh rate provides a smoother and more responsive viewfinder experience.
EVIL Camera: An acronym for Electronic Viewfinder Interchangeable Lens, referring to mirrorless cameras that feature an electronic viewfinder and interchangeable lenses.
Exif (Exchangeable Image File Format): A standard format for storing metadata in digital image files, including camera settings, date, and other relevant information.
EXIF Data: Metadata embedded in digital image files that provides information about the camera settings, exposure, date, and other details.
ExifTool: A popular command-line tool used to read, write, and manipulate Exif metadata in image files.
ExpoDisc: A white balance calibration tool used to obtain accurate color reproduction by measuring and setting the appropriate white balance for a scene.
Expose for the Highlights: A technique where the exposure settings are adjusted to prioritize preserving detail in the brightest areas of the image, even if it results in darker shadows.
Expose to the Right (ETTR): A technique where the exposure is intentionally pushed to the brighter side of the histogram to maximize the amount of data captured in the highlights.
Exposition Time: The length of time that the camera’s shutter remains open during a long exposure, typically measured in seconds or minutes.
Exposition: A term used to describe the presentation or display of photographs in a gallery, exhibition, or public space.
Exposure Bracketing: A technique where multiple images of the same scene are captured at different exposure settings, typically with one image underexposed, one correctly exposed, and one overexposed. This is done to ensure capturing the optimal exposure.
Exposure Bracketing: A technique where multiple images of the same scene are captured at different exposure levels, typically with variations in shutter speed, to ensure a properly exposed image.
Exposure Bracketing: Capturing multiple images of the same subject with different exposure settings to ensure at least one image is properly exposed.
Exposure Compensation Dial: A control on a camera that allows the photographer to manually adjust the exposure settings to make the image brighter or darker.
Exposure Compensation Dial: A dedicated dial or button on a camera that allows for quick adjustment of the exposure settings to make the image brighter or darker.
Exposure Compensation: The adjustment of exposure settings to make an image brighter or darker than the metered exposure.
Exposure Compensation: The adjustment of the camera’s exposure settings to deliberately overexpose or underexpose the image, typically in increments of stops (+1EV, -2EV, etc.).
Exposure Fusion: A technique used in high dynamic range (HDR) photography where multiple bracketed exposures are blended together to create a final image with a balanced exposure and enhanced dynamic range.
Exposure Latitude: The range of brightness levels that a camera sensor or film can capture while still retaining detail in both the highlights and shadows.
Exposure Latitude: The range of brightness that a camera sensor or film can effectively capture, from the darkest shadows to the brightest highlights.
Exposure Lock (AE-Lock): A camera function that allows the photographer to lock the exposure settings while recomposing the shot.
Exposure Meter: A device, often built into the camera, that measures the amount of light in a scene to determine the appropriate exposure settings.
Exposure Metering Modes: Different modes used by a camera’s metering system to measure the light in a scene and determine the exposure settings. Common metering modes include evaluative/matrix, spot, center-weighted, and partial metering.
Exposure Metering: The camera’s method of measuring the light in a scene to determine the optimal exposure settings.
Exposure Priority Mode: A shooting mode on some cameras that allows the photographer to prioritize the desired exposure settings, such as aperture or shutter speed, while the camera adjusts other parameters accordingly.
Exposure Priority: A shooting mode where the camera prioritizes achieving a correct exposure, adjusting other settings to maintain the desired exposure level.
Exposure Range: The range of brightness levels that can be captured by a camera or film, from the darkest shadows to the brightest highlights.
Exposure Simulation: A feature on some cameras that displays a real-time preview of the exposure settings in the electronic viewfinder (EVF) or on the rear LCD screen.
Exposure Stacking: A technique that involves capturing multiple images of the same scene with different exposure settings and then blending them together to achieve a final image with enhanced dynamic range.
Exposure Table: A chart or reference guide that provides recommended exposure settings for different lighting conditions, subject types, and film or sensor sensitivities.
Exposure Time: The duration for which the camera’s shutter remains open, allowing light to reach the image sensor and create an exposure. It is typically measured in fractions of a second.
Exposure Time: The duration for which the camera’s shutter remains open, determining the amount of light that reaches the image sensor.
Exposure Triangle: The relationship between aperture, shutter speed, and ISO, which together determine the exposure of an image.
Exposure Triangle: The relationship between aperture, shutter speed, and ISO, where adjusting one parameter affects the others to maintain a consistent exposure.
Exposure Value (EV) Scale: A scale that represents the range of brightness levels in a scene, typically ranging from -3 EV (underexposed) to +3 EV (overexposed).
Exposure Value (EV): A unit of measurement representing a combination of aperture and shutter speed settings that result in a specific exposure.
Exposure Warning: Also known as “blinkies” or highlight/shadow warning, it is a camera feature that displays flashing indicators on the LCD screen or in the viewfinder to indicate areas of overexposure or underexposure in an image.
ExpoSure: A term used to describe the overall amount of light and darkness in a photograph, influencing the mood, contrast, and tonal range of the image.
Exposure: The amount of light reaching the camera’s image sensor, determined by the combination of aperture, shutter speed, and ISO.
EXR Sensor: A type of image sensor developed by Fujifilm that uses a unique pixel arrangement to enhance dynamic range and low-light performance in captured images.
Extended ISO Range: Some cameras offer an extended ISO range beyond the standard range, allowing for higher sensitivity settings to capture images in extremely low-light conditions.
Extension Arm: A device used to extend the reach of a camera or accessory, commonly used in overhead or low-angle shots.
Extension Tube: A hollow tube that fits between the camera body and lens to reduce the minimum focusing distance, allowing for close-up or macro photography.
External Battery Pack: A portable power source that can be connected to a camera or flash unit to extend battery life, particularly useful during long shooting sessions or in cold weather conditions.
External Flash: A detachable flash unit that can be mounted on the camera’s hot shoe or used off-camera to provide additional light.
External Meter: A handheld light meter separate from the camera used to measure the light in a scene and provide exposure recommendations.
External Microphone: A microphone that can be attached to a camera to improve audio quality when recording videos, interviews, or other sound-capturing situations.
External Viewfinder: An optical or electronic viewfinder that can be attached to a camera’s hot shoe or accessory port to provide an additional framing option or enhance the viewing experience.
Extreme Close-Up: A type of macro photography where the subject is magnified at a very close range, often revealing intricate details that are not easily visible to the naked eye.
Extreme Long Exposure: A photographic technique that involves using very long shutter speeds, often several minutes or even hours, to capture subjects in low-light conditions or create unique motion blur effects.
Extreme Telephoto Lens: A lens with an exceptionally long focal length, typically exceeding 300mm, used for capturing distant subjects or achieving a high level of magnification.
Eye Autofocus: A camera feature that uses facial recognition or eye detection technology to automatically focus on a person’s eyes when capturing portraits.
Eye Cup: A detachable accessory that attaches to the camera’s viewfinder to provide comfort and block stray light for better viewing.
Eye-Detection Autofocus: An advanced autofocus feature that detects and focuses on the subject’s eyes, ensuring sharp focus on the most critical part of the image, often used in portrait photography.
Eye-Fi Card: A type of SD memory card that incorporates Wi-Fi connectivity, allowing for wireless transfer of photos from the camera to a computer or mobile device.
Eye-Level Shot: A photograph taken at the same height as the subject’s eyes, resulting in a natural perspective and connection with the viewer.
Eye-Level Viewfinder: A viewfinder located at the camera’s eye level, typically found on DSLR cameras, which allows the photographer to compose the shot while looking through the viewfinder.
Eyelighter: A specialized reflector used in portrait photography to create a catchlight in the subject’s eyes and provide a subtle fill light from below.
Eyepiece: The viewing area of a camera’s viewfinder where the photographer places their eye to compose the shot and observe the scene.
