The following are most common lenses are in the market for amateur and professional use. You may want to add to your existing kit lens some time, the following definitions of the purpose and main options to consider in research.

Telephoto Lenses (200mm, 500 mm, 1000 mm)

The telephoto or long focus lenses produce images of distant subjects biggest targets of shorter focal length or normal glasses. They need an additional extension to make them even more in the film plane. The greater the extent or the lens focal length, the greater the increase.

This extension has no problem standing with a camera but no camera or hand held portable. The lenses are large and bulky, which are unbalanced and difficult to use in the hand and is virtually impossible to eliminate hand movement and the movement of shutter release.

The telephoto lens gives a very shallow depth of field and are not corrected to the subjects more often about 5 to 10 meters. Therefore, it is excellent for picking out a distance, virtually perspective less detail, and de-emphasis on the surroundings. The telephoto lens has the ability to compress scenes.

Tele-converter, an extension tube with the optical components are made for use between the lens and body. They are cheaper than telephoto lenses, but the image quality is generally poor. The telephoto lens is the most common size of about 200 mm, and of course the cheapest.

Wide Angle Lenses (18mm, 20mm, 28mm, 35mm)

A wide-angle lens or short focal length produces smaller images and more views than the more focal length lenses or normal lenses.

Problems with wide angle lenses are the distortions of perspective and are gross close to the lens away from the subject. Lines converge and diverge and some items are of disproportionate size.

Moreover, given the wide angle of view that are prone to aberrations in strong light conditions. Most wide angle lenses are supplied with umbrellas to help overcome the sharp rays of light. Such aberrations include Lens Flare and the corner drop.

Wide-angle lenses are useful when the camera is required near the subject distance and the maximum depth of field. The 28 mm is usually what people choose, and that goes wider expensive. The most expensive is the next target, the eye of fish.

Fisheye lens (6 mm or 220, 14mm, 180 degrees)

The fisheye lens distortion correction sacrifices linear for extreme angle of view. Depth of field is very wide and pretty good definition. Some fish eyes have been produced for scientific purposes, such as full-sky picture of meteorology. Most is used for dramatic distortions in commercial images.

High cost and limited application means that these lenses are generally hired and not purchased.

Macro Lenses

Macro is a general term applied to photographic lenses in the foreground – the conditions under which the image is larger than the subject. They are usually short-term interest and corrected for distance from the subject closely.

The use of macro lenses in its smallest aperture should be avoided. The very high efficiency f / may lead to deterioration of the image due to refraction.

Bellows and extension tubes are available to expand the scope of the macro lens. Macro lenses are also a costly endeavor, so choose carefully.

Telephoto (80-220mm, 35-120mm)

Zoom lenses combine the basic forms of several lenses in one lens. For a lens to achieve this requires a complex optical system that includes many elements. Zoom lenses are usually purchased to replace a wide range of lenses and are particularly useful for traveling.

Zoom lenses are usually the maximum focal length that presents the problem associated with this focal range.Also because of the additional elements in the lens design, quality suffers.

This objective is the most popular these days and are usually offrered as part of the package when you buy a camera. As this is a common goal, is very cheap, however, like telephoto lenses, plus the lens, the more expensive.

Focus Soft Contact Lenses (120 mm vertical lens)

A soft-focus lens is a point of light as a circular patch of light with a core of higher intensity. Therefore differs from one image out of focus. The effect is a halo or the smoothness of contour.

Soft focus lenses are generally of high quality and have a history of use in the portrait, fashion, glamor and more recently in the photograph of staff.

The soft approach can also be achieved through soft focus filters. These lenses are very expensive and purchased for professional photographers who are doing a lot of glamor and fashion work with models.

Process Lenses

Copying process or lenses are specifically designed for the backup job. It is essential that such lenses have a field of view without distortion (flat), even illumination and a high degree of chromatic correction.

Process lenses are not required to cover a wide field and not have to be very open. Maximum aperture is often f / 8 and the field of vision is usually a 1:1 ratio.

Mirror Lenses (500 mm, 1000 mm)

The mirror is different from the above, since it is a system that reflects and not optical. The mirror lenses are renowned for their characteristic shape of a drum and a central opaque front element.

The mirror lenses are popular for long focal lengths for small cameras because they are considerably lower than their optical counterparts. The mirror lenses are also cheaper than optical lenses long.

The problems are that these lenses suffer from aberrations and can not focus on close subjects (1000mm min 30 m) and speed of the lens is slow (f/10.5)