Glossary Of Photography Terms
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Tagging Photos Tagging photos is a metadata management process used to organize, categorize, and label digital images with descriptive keywords, labels, or metadata tags. Tags help photographers and users easily search, filter, and retrieve specific photos from large collections based on their content, location, subject matter, or other relevant attributes. Tags can be manually added to photos using image management software or embedded in the image file's metadata. They provide a convenient way to organize and categorize photos for personal archiving, online sharing, and collaborative projects, making it easier to locate and identify images within digital libraries or online galleries. |
Techmount A company that produces a heat-activated adhesive tissue used in dry mounting processes. The tissue is placed between the mounting surface and the image, and pressed with a heated iron or lidded press. The tissue adheres the artwork to the mounting board. |
Telephoto Lens A telephoto lens is a type of camera lens with a long focal length that enables photographers to capture distant subjects with magnified detail and narrow angles of view. Telephoto lenses have a focal length greater than 50mm and typically range from 85mm to 600mm or longer. They are commonly used in wildlife photography, sports photography, portrait photography, and landscape photography to bring distant subjects closer, isolate subjects from their surroundings, and create compressed perspectives. Telephoto lenses produce shallow depth of field, making them ideal for achieving selective focus and creating dramatic, visually compelling images with blurred backgrounds. |
Texture Texture in photography refers to the surface quality, tactile appearance, and visual pattern of objects or subjects within an image. It encompasses the fine details, roughness, smoothness, and tactile characteristics of surfaces, such as fabrics, foliage, architecture, skin, and natural elements. Texture adds depth, dimension, and visual interest to photographs, enhancing their tactile and sensory appeal. Photographers use lighting, composition, and focus techniques to emphasize texture and capture the intricate patterns, contrasts, and tactile qualities of subjects. Texture photography explores the interplay between light and shadow, highlights and shadows, and different materials to create visually captivating images that engage the viewer's sense of touch and perception. |
TIFF A lossless image file type that allows the digital image to shared and transferred without dropping any information in the compression, therefore resulting in an image almost identical to the one taken on the camera.
It is "platform independent" which means most image editing software can open and edit the files. |
Time-Lapse Time-lapse photography is a technique used to capture a sequence of frames at set intervals over a period of time and then play them back at a faster frame rate than they were captured. This results in a compressed representation of time, allowing viewers to observe changes that occur slowly over time, such as the movement of clouds, the blooming of flowers, or the transition from day to night, in a condensed format. Time-lapse sequences can be created using digital cameras, smartphones, or dedicated time-lapse cameras. They are commonly used in nature documentaries, construction projects, cityscapes, and creative visual storytelling to showcase the passage of time and capture dynamic changes in the environment. |
Tone Mapping Tone mapping is a digital image processing technique used to enhance the dynamic range and tonal range of high dynamic range (HDR) images for display on standard dynamic range (SDR) devices, such as computer monitors and print media. HDR images contain a wider range of luminance values than traditional images, capturing details in both the highlights and shadows of a scene.
Tone mapping algorithms compress and remap the tonal values of HDR images to fit within the limited dynamic range of SDR displays while preserving as much detail and contrast as possible. Tone mapping techniques include global tone mapping, local tone mapping, and adaptive tone mapping, each of which adjusts the tonal values of the image to optimize its visual appearance and ensure that details are visible across the entire tonal range. |
Tripod A tripod is a three-legged camera support device used to stabilize cameras and provide steady support during photography and videography. Tripods consist of three extendable legs that can be adjusted to various heights and angles, as well as a central column or mounting platform where the camera is attached. Tripods are essential tools for achieving sharp, blur-free images in low light conditions, long exposure photography, macro photography, and landscape photography. They help eliminate camera shake and vibration caused by handholding the camera, allowing photographers to capture clear, sharp images with precise composition and framing. Tripods come in various sizes, materials, and designs to accommodate different camera sizes, weights, and shooting environments. |
TTL TTL, which stands for "Through the Lens," is a metering and exposure control system used in cameras, flashes, and lighting equipment to measure and regulate the amount of light reaching the camera's image sensor or film plane. In TTL metering systems, the camera evaluates the light levels and exposure settings through the lens (hence the term "Through the Lens") in real-time, using sensors or metering circuits to calculate the optimal exposure settings for the scene.
TTL metering allows cameras to automatically adjust the aperture, shutter speed, and ISO sensitivity to achieve proper exposure, ensuring that images are neither underexposed nor overexposed. TTL metering systems are commonly used in digital SLR cameras, mirrorless cameras, and dedicated flash units to facilitate accurate and consistent exposure control in various lighting conditions. |
Tungsten Light Tungsten light, also known as incandescent light, is a type of artificial lighting commonly used in photography, film production, and indoor lighting applications. Tungsten light sources produce illumination by passing an electric current through a tungsten filament, which heats up and emits light in the visible spectrum. Tungsten light has a warm color temperature of around 3200 Kelvin, which gives it a yellowish-orange hue.
It is often used in indoor settings, such as homes, studios, and stage productions, to provide ambient lighting or as a primary light source for photography and videography. Tungsten light sources require color correction filters or white balance adjustments to compensate for their warm color temperature when used alongside daylight or other light sources with different color temperatures. |
Twin Lens Reflex (TLR) Camera A Twin Lens Reflex (TLR) camera is a type of medium-format film camera that features two lenses mounted side by side on the front of the camera body. One lens is used for composing and focusing the image, while the other lens captures the image on the film plane. TLR cameras typically have a waist-level viewfinder that allows photographers to compose images by looking down into the camera from above. The upper lens is connected to the viewfinder system, providing a reflected image on a ground glass or mirror that the photographer can use to compose and focus the shot. TLR cameras are known for their simplicity, durability, and image quality, making them popular among photographers for portrait, landscape, and street photography. |
TYVEK Made from polyethylene (a petroleum-based plastic) fibers flashspun to produce an unwoven, synthetic material, Tyvek (the brand name from the company DuPont) is most often used to protect building foundations before the siding has been put up. The material is strong and difficult to tear (but easily cut), and repels liquid water.
In printing, this substrate can be used much like regular paper, though it must be properly treated for any ink applications besides lithographic and flexographic. Solvent inks with too high a solvent concentration can cause the material to swell, and water-based inks may cause the image to feather or blur. Tyvek is commonly used for printing ski tags, banners, tags, and labels. |
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