Learn the basics of photography from scratch 14- do you really know these shots (part two)

"Macro lens", also known as "colossal lens", is a kind of lens that can produce colossal effect. Can be divided into "special type" and "general type".

"Special-purpose" colossus lenses can only be used for close-ups. It is usually used in combination with short-distance skin cavity or short-distance tube to obtain high-magnification images.

The "universal" lens can be used as a colossus lens at close range and an ordinary lens at a long distance. Its close-up magnification is small, which is not as good as the special giant lens.

Also called "axis-shifting lens", it is a special lens used to adjust the perspective effect or depth of field effect of an image. Often used in architectural photography and advertising photography. The optical axis of the lens can be adjusted in translation, tilt or rotation. Its main disadvantage is that it is easy to produce dark corners and the price is relatively expensive.

It can not only produce a unique image effect by swinging the lens skin cavity, but also lengthen the skin cavity for macro shooting.

It can slightly blur the image and is mainly used for portrait photography and landscape photography. Its essence is to produce a ghost, a clear real image and an out-of-focus virtual image, which coincide.

It is a kind of special effect lens which uses the principle of light scattering to blur the foreground and background, while the imaging of the focus center remains clear.

Mainly divided into telephoto zoom lens, wide-angle zoom lens and Pang zoom lens.

Telescope zoom lens: it is the most commonly used zoom lens, which can increase the focal length of the main lens by a certain magnification. Its disadvantage is that it will reduce the effective aperture of the main lens.

Wide-angle zoom lens: Its function is to reduce the focal length of the lens. There is no need for exposure compensation when using, and the effective value of the main lens aperture remains unchanged, but the small aperture shooting is suitable, which is beneficial to the imaging quality.

Macro lens: You can turn a standard lens into a "macro lens".

It can reduce or even eliminate the influence of hand shake on image clarity when shooting with a handheld camera.

Divided into digital special lens and digital optimized lens.

"Digital Special Lens" is not applicable to any non-Quan Huafu digital camera. Can only be used for corresponding or similar models of digital cameras.

"Digital optimized lens" can change the shape of the lens behind the lens, so that the reflected light of the low-pass filter can be reflected to the part outside the sensor screen, thus avoiding the influence of "ghost". The second is to improve the coating process of the lens behind the lens to eliminate the reflected stray light.