Digital Photography Vocabulary Study Guide

Comprehensive vocabulary flashcards covering camera basics, exposure, digital imaging, color management, editing, and inkjet printing & proofing.

Angle of View

The amount of a scene that a camera lens can capture, measured in degrees. Wide-angle lenses capture more of a scene, while telephoto lenses capture less.

Aperture

The opening inside a lens that controls how much light enters the camera. It also affects depth of field.

ASA/ISO

A measurement of a camera's sensitivity to light. A lower ISO produces less image noise, while a higher ISO allows photography in darker conditions but may create more noise. ASA is the older term used for film sensitivity.

Bracket

To take multiple photographs of the same subject using different exposure settings, usually to ensure one image is correctly exposed.

Contrast

The difference between the lightest and darkest areas of a photograph. High contrast has strong differences, while low contrast appears more subtle.

Depth of Field

The area of a photograph that appears acceptably sharp. A shallow depth of field has a small area in focus, while a deep depth of field has more of the scene in focus.

Exposure

The amount of light that reaches the camera's sensor when taking a photograph. It is controlled by aperture, shutter speed, and ISO.

Exposure Meter

A tool that measures light and helps determine the correct exposure settings for a photograph.

F-Stop

The numerical measurement of aperture, such as f/2.8, f/5.6, or f/16. A smaller f-number means a wider opening, while a larger f-number means a smaller opening.

Focal Length

The distance, measured in millimeters, between a lens's optical center and the sensor when focused at infinity. It determines the lens's angle of view and magnification.

Frame

The individual image captured by a camera. It can also refer to the boundaries of the photograph or the composition within them.

Highlight

The brightest areas of a photograph.

Interchangeable Lens

A lens that can be removed from a camera and replaced with another lens.

Manual Exposure

A camera mode in which the photographer manually controls aperture, shutter speed, and usually ISO.

Long Lens

A lens with a long focal length that provides a narrow angle of view and makes distant subjects appear closer.

Short Lens

A lens with a short focal length that provides a wider angle of view and captures more of the scene.

Normal Lens

A lens with a focal length that produces a perspective and angle of view similar to human vision. For a full-frame camera, this is typically around 50mm.

Open Up

To increase the size of the aperture by choosing a smaller f-number, allowing more light into the camera.

Overexpose

To allow too much light into a photograph, making the image appear too bright.

Reflected Light Meter

A meter that measures light reflected from a subject toward the camera. It is built into most cameras.

Shutter

The mechanism that controls how long light reaches the camera's sensor.

Digital Single Lens Reflex (DSLR)

A digital camera that uses a mirror and optical viewfinder to allow the photographer to see through the lens.

Stop

A unit of measurement representing a doubling or halving of the amount of light.

Stop Down

To decrease the size of the aperture by choosing a larger f-number, allowing less light into the camera.

Telephoto Lens

A lens with a long focal length that magnifies distant subjects and provides a narrow angle of view.

Underexpose

To allow too little light into a photograph, making the image appear too dark.

Viewfinder

The part of the camera used to look at and compose a photograph before taking it.

Motion Blur

The streaking or blurring of a moving subject caused by movement during the exposure.

Stop Motion

A technique that creates the appearance of movement by photographing a subject in small increments and combining the images into a sequence.

Panning

Moving the camera horizontally or vertically while photographing a moving subject, often keeping the subject relatively sharp while the background becomes blurred.

Wide-Angle Lens

A lens with a short focal length that captures a wide area of a scene.

Zoom Lens

A lens with an adjustable focal length, allowing the photographer to change the angle of view without changing lenses.

Bit Depth

The number of bits used to represent the color or tonal information in an image. Higher bit depth allows more color and tonal variations.

Bulb

A shutter setting that keeps the shutter open for as long as the shutter button is held or a remote release is activated. It is used for very long exposures.

Calibrate

To adjust a device, such as a monitor or printer, so that its colors and tones are accurate and consistent.

CCD/CMOS

Two types of digital image sensors that convert light into electronic signals. CCD stands for Charge-Coupled Device, and CMOS stands for Complementary Metal-Oxide-Semiconductor.

Color Balance

The adjustment of the amounts of red, green, and blue in an image to achieve accurate or desired colors.

Color Cast

An unwanted overall tint in a photograph, such as a blue, green, or yellow appearance.

Color Management

A system used to maintain consistent and accurate colors across cameras, monitors, software, and printers.

Color Temperature

A measurement of the color of light in Kelvin (K). Lower temperatures appear warmer and more orange, while higher temperatures appear cooler and more blue.

Compression

The process of reducing the file size of an image to save storage space or make it easier to transfer.

Cool Colors

Colors such as blue, green, and violet that tend to create a cool or calm feeling.

Gamut

The range of colors that a device or color space is capable of displaying or reproducing.

Byte

A unit of digital information equal to 8 bits.

Gigabyte (GB)

A unit of digital storage. Approximately 1 billion bytes in decimal measurement.

Megabyte (MB)

A unit of digital storage. Approximately 1 million bytes in decimal measurement.

Histogram

A graph that displays the distribution of brightness values in a photograph, from shadows on the left to highlights on the right.

Inkjet

A printing technology that produces images by spraying tiny droplets of ink onto paper.

Latitude

The range of exposure values a camera or image can tolerate while still retaining useful detail.

Lossy Compression

A compression method that permanently removes some image information to reduce file size. JPEG commonly uses lossy compression.

Lossless Compression

A compression method that reduces file size without permanently removing image information.

Macro Lens

A lens designed for close-up photography that allows small subjects to be photographed with high detail.

Media

The material or storage device used to record or display images. In digital photography, this can include memory cards, hard drives, and printing paper.

Memory Card

A removable storage device used to save digital photographs in a camera.

Metadata

Information stored within an image file, such as camera settings, date, time, lens information, and sometimes location.

Midtones

The middle brightness values in a photograph, between the darkest shadows and brightest highlights.

Noise

Random variations in brightness or color that appear in a digital image, often noticeable in photographs taken at high ISO or in low light.

Pixel

The smallest individual element of a digital image. Each pixel contains color or brightness information.

PPI (Pixels Per Inch)

A measurement of how many pixels are displayed or placed within one inch. It affects image detail when printed or displayed.

Profile

A file that describes how a device or color space reproduces color, helping maintain color accuracy.

Proof

A test print made before producing the final photograph to check color, exposure, sharpness, and overall appearance.

RAW File

An image file containing minimally processed sensor data. It provides greater flexibility for editing exposure, color, and detail.

Resolution

The amount of detail in a digital image, usually described by its pixel dimensions or pixel density.

Color Space (RGB)

A color model that creates colors by combining red, green, and blue light. It is commonly used for digital photographs and screens.

Speed

In photography, this commonly refers to shutter speed or ISO speed. Shutter speed determines how long light reaches the sensor, while ISO indicates sensitivity.

Warm Colors

Colors such as red, orange, and yellow that tend to create a warm or energetic feeling.

White Balance

A camera or editing adjustment that makes white objects appear neutral under different lighting conditions, helping other colors appear accurate.

Workflow

The organized process of taking, transferring, editing, saving, printing, and presenting photographs.

JPEG

A common image file format that uses lossy compression to reduce file size. It is widely used for sharing and displaying photographs.

TIFF

A high-quality image file format often used for printing and archiving. It can store images with lossless compression or without compression.

Shutter Speed

The amount of time the camera's shutter stays open to allow light to reach the sensor. It is measured in seconds or fractions of a second.

Exposure Mode

A camera setting that determines how exposure is controlled. Examples include manual, aperture priority, shutter priority, and program mode.

Aspect Ratio

The proportional relationship between the width and height of an image. Common ratios include 3:2, 4:3, and 16:9.

Formal Choices

The visual decisions a photographer makes when creating an image, such as composition, lighting, focus, perspective, framing, contrast, and color.

Editing/Post-Production

The process of adjusting a photograph after it has been captured. This may include cropping, exposure adjustments, color correction, retouching, and sharpening.

Color Channel

An individual component of a color image. In an RGB image, the red, green, and blue channels each contain information about that color's intensity.

Shadow

The darkest areas of a photograph where less light is present. Shadows help create depth, contrast, and dimension.

Tonal Adjustments

Changes made to the brightness and contrast of an image, including adjustments to shadows, midtones, and highlights.

Sharpening

An editing technique that increases the appearance of detail by enhancing contrast along edges in a photograph. It does not actually restore missing detail.

Soft Proofing

Using editing software to preview how an image may look when printed with a particular printer, ink, and paper profile.

Hard Proof

A physical test print used to evaluate the appearance of an image before producing the final print.

ICC Profile

A file that describes the color characteristics of a device or paper to help reproduce colors accurately.

Color Correction

Adjusting the colors of a photograph to remove unwanted tints or achieve the desired appearance.

Printer Resolution

The number of ink droplets a printer can place within an inch, commonly measured in DPI (dots per inch).

DPI

Dots per inch. It measures the printer's ink-dot density, unlike PPI, which measures image pixel density.

Paper Profile

A color profile designed for a specific paper and printer combination.

Rendering Intent

The method used to translate colors from one color space into another, especially when some colors cannot be reproduced by the printer.

Exposure Triangle

A concept describing how aperture controls light and depth of field, shutter speed controls exposure duration and motion blur, and ISO affects sensitivity and noise.