What Is a Macro Teleconverter?

Macro photography is a relatively large category of photography activities. It can be said that most people engaged in photography activities have been exposed to macro photography more or less. Macro photography is not mysterious, but some photography enthusiasts have an elusive feeling about this type of photography. After engaging in ordinary photography, they thought that macro photography was an alternative method. The extension of photography, its working mechanism is the same as ordinary photography, and it must adhere to the basic laws of optics.

Macro

Macro photography has its particularity and involves many accessories. The flexible use of these accessories is one of the keys to macro photography.

In photography, there is a concept of magnification, which is related to the reproduction ratio of the image. The reproduction ratio is the numerical relationship between the actual size of the subject and the size of the image. It is usually expressed by numbers on either side of the colon:

Macro photography is one of the specialties of digital cameras. Macro shooting can make very ordinary scenes into dramatic scenes. Macro is particularly good at expressing flowers.

Malaysian photographer Lee Pei Ling uses macro photography in her garden to shoot a set of photographs entitled "A Bug's Life". She uses water, flowers, The grass, props and natural lights create a vivid and quiet micro-world for insects in their own garden, showing the peaceful life of different insects in various forms. In these works, whether it is the use of color, the adjustment of light, or the delicate expression of insects, Li Peiling is almost perfectly expressed. ^[3]

The macro functions of consumer digital cameras range from 10cm to 20cm, and some can reach 1cm to 2cm.

For SLR digital cameras, the macro shooting ability is determined by the lens. Now, almost every lens has a macro function, but the macro function they refer to is the close-up capability of the lens. The highest resolution and highest contrast of a general lens are shown when the focus is at infinity, but the macro lens is just the opposite. Its highest resolution and highest contrast are shown when the focus is close, so it is necessary to shoot high quality For macro photos, a macro lens must be selected.

To meet different needs, macro lenses with different focal lengths are available on the market, ranging from 20mm to 135mm. Wide-angle macro lenses are often used with telescopic cavities. If a 20mm macro wide-angle lens is used in conjunction with a telescopic cavity, it can achieve a magnification of up to 5: 1-12: 1.