Kelvin (K)
Kelvin is a unit of measurement used to quantify color temperature in photography. It indicates the warmth or coolness of light, with higher values representing cooler (bluish) tones and lower values representing warmer (reddish) tones.
- Low Kelvin (2500K–3500K) = warm/yellow light (bulbs, candles)
- High Kelvin (5500K–7500K) = cool/blue light (daylight, shade)
Key Light
The key light is the primary light source used in a photography setup. It provides the main illumination and determines the direction, intensity, and quality of light falling on the subject.
Kill Switch
A kill switch is a safety feature found on some cameras that instantly turns off all power to the camera, preventing accidental activation or shutting down in emergency situations.
Kodachrome
Kodachrome was a popular color reversal film produced by Kodak. Known for its vibrant colors and archival quality, Kodachrome was widely used in the film era but was discontinued in 2009.
Keyframe
In the context of image editing or animation, a keyframe is a specific frame or point in a sequence where a significant change or transition occurs. Keyframes are used to define and control animation or visual effects.
Key Subject
The key subject is the main or primary subject of a photograph. It is the focal point that draws the viewer’s attention and serves as the primary point of interest.
Keystoning
Keystoning refers to the distortion or tilting effect that occurs when a camera is not parallel to the subject, resulting in converging lines. Keystoning can be corrected through software or perspective control lenses.
Kiosk
In photography, a kiosk typically refers to a self-service booth or station where customers can view, select, and print their photographs or order photo products such as prints, albums, or customized merchandise.
Key Fill Ratio
Key fill ratio is a lighting term that describes the balance between the intensity of the key light and the fill light. It determines the overall contrast and shadow detail in a photograph.
Ken Burns Effect
The Ken Burns effect is a popular technique in video or slideshow presentations where still images are animated by panning and zooming to create a sense of motion and visual interest.
Kelvin White Balance
Kelvin white balance is a manual white balance setting available in some cameras. It allows photographers to set the color temperature in Kelvin units to accurately reproduce colors under specific lighting conditions.
Kinetic Photography
Kinetic photography involves capturing images that convey a sense of motion or movement. Techniques such as panning, long exposure, or multiple exposures are used to create dynamic and visually engaging photographs.
Knockout
A knockout in photography refers to the technique of isolating a subject from its background or replacing the background with a different image or color. It is commonly used in product photography or portraiture to create a clean and focused look.
Keying
Keying is a technique used in post-processing or video editing to remove or replace a specific color or range of colors in an image or video footage. It is commonly used in green screen or chroma key effects.
Key Light Modifiers
Key light modifiers are accessories or attachments used to modify or shape the quality of the key light. Examples include softboxes, umbrellas, grids, or snoots, which help control the spread, diffusion, and direction of light.
Kittenography
Kittenography is a term used to describe photography that focuses on capturing adorable and playful moments of kittens or young cats. It often emphasizes their cuteness, curiosity, and playful nature.
Keyhole Composition
Keyhole composition is a creative technique where a key element in the photograph is framed by a distinctive opening or structure, such as a doorway, arch, or foliage. It adds depth and visual interest to the composition.
Keychain Camera
A keychain camera is a compact, lightweight camera that is small enough to be carried on a keychain. These cameras are designed for convenience and portability, often offering basic features and image quality.
Kicker Light
A kicker light is a small light placed behind the subject (usually from the side).
It creates a bright rim or highlight on hair or edges, giving a dramatic look.
Kit Lens
A kit lens is the basic lens that comes bundled with a camera.
Common examples:
- 18–55mm
- 16–50mm
It’s great for beginners but usually not as sharp or fast as premium lenses.
K Mount
K Mount is a lens mount system used by Pentax cameras. It defines how a lens connects to the camera body.
K Color Space (K in Color Science / Editing)
Sometimes photographers use “K” informally while discussing color calibration and temperature adjustments in editing tools. It mostly refers to Kelvin-based color correction
Kissing Light
Kissing light means soft light touching only the edges of the subject.
It creates a beautiful glow effect, often used in portrait photography.
Kirlian Photography
Kirlian photography is a special technique that captures electrical discharges around objects, giving an “aura-like” glow.
It’s more experimental and scientific than normal photography
Kookaloris
A kookaloris (also called cookie) is a tool used in lighting to create shadow patterns.
Example: making window-like shadows on a wall. Example: used for cinematic portrait lighting.
Kinetic Zoom
A kinetic zoom is when you zoom the lens during exposure, creating a burst effect around the subject.
Works best with slow shutter speed.
Key exposure
Key exposure means the main exposure level you set in-camera to properly expose the subject.
Kodak Moment
A famous phrase meaning a perfect moment worth capturing. Not a technical term but commonly used in photography culture.
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