Terminology of photography for beginners.

Force yourself to recite more photos of yourself! Complete collection of photographic terms

Telephoto lens: 200mm and 300mm are telephoto lenses, which can be used to shoot birds, lotus flowers and moving objects, and can also "hit" not far away. Therefore, this kind of focal length lens is also called telescopic lens or telephoto lens, which is mostly used to shoot distant scenes.

Super telephoto lens: a lens with a focal length greater than 300mm, suitable for shooting wildlife and sports themes. It is also suitable for taking close-ups of sunrise, sunset, full moon and string moon.

Macro lens: a lens that can be focused very close to an object. The size of the image formed by the macro lens on the film or sensor is almost equal to the size of the subject itself.

Standard wide angle: 24~28mm is a relatively standard wide angle focal length, which is mainly used for shooting scenery.

Meng: Canon EF50mmF/ 1.8 lens.

Dog head: Finger-covering lens, entry-level lens, representing Canon 18-55mm.

Cookie head: refers to a SLR lens, which is very thin and similar to a cookie head. The maximum aperture is generally only F2.4-2.8.

Zeiss lens: At present, Zeiss SLR lenses mainly include Classic, Milvus and. Otus, but they are all expensive.

Aperture: Aperture is indicated by "∫" on the camera, which is used to control the luminous flux of the lens. Every time you increase an aperture, the amount of light entering the camera will double, and every time you decrease an aperture, the amount of light entering will be reduced by half.

Shutter: The shutter is a device in the camera to control the exposure time. Generally, the larger the shutter time range, the better. Low seconds is suitable for shooting moving objects and can easily capture fast moving targets.

Color temperature: the color temperature is represented by k, and the color of the photo is adjusted by white balance. Because of different light sources, the color temperature of photos is different. Generally, the color temperature of natural light is 4500 K. The higher the value, the colder and warmer the picture.

Color difference: Because the lens can't focus all colors on the same point, it appears in the area where the dark part and the bright part intersect in the image in the form of color stripes. It can be adjusted by PS or LR.

Overexposure: Overexposure refers to the phenomenon that the exposure time is too long due to inaccurate metering. This will make the picture lose color, lose the details and layering of the highlight area, and make the picture look very white. Overexposure will cause irreversible damage to the picture.

Red eye: when the camera shoots a portrait under the flash, the pupil of the human eye will appear red spots in the photo. Red-eye prevention can alleviate this sad situation. He will pre-flash in front of the official light to make people's pupils shrink.

Sensitivity: Sensitivity, also known as ISO, refers to the camera's sensitivity to light. The larger the number, the higher the sensitivity, and the more sensitive the camera is to light; The smaller the number, the lower the sensitivity, and the less sensitive the camera is to light. The more exposure, the brighter the picture and the higher the noise, which will affect the picture quality. On the contrary, the lower the ISO, the darker the picture, the less noise, the clearer and more textured it is.

Focal length: Focal length refers to the distance from the optical center of the lens to the imaging plane in m (mm), which is similar to the distance from the human eye to the retina and is one of the key parameters affecting imaging.