Know the Different Types of Lenses for SLR Cameras

Posted by Bimo Hery Prabowo On Sabtu, 04 Agustus 2012 0 comments

Lenses for SLR Cameras
one of the advantages of the Single Lens Reflex camera (SLR) which both conventional (film) or digital (DSLR) is easily we replace the standard lens (kit) comes from factories with other lenses that suit the tastes or needs.

What are the types of lenses on the market which is used for "painting with light 'it?

A. Normal lenses

This lens is a lens that produces images with more natural perspective when compared with other types of lenses. A lens is categorized as normal if the lens has a focal length equivalent to the diagonal of the projected image sensor inside the camera.

In the 35mm format, the dimensions of the image projected into the camera is 36 mm x 24 mm (length x width), so that the image diagonal is 43.27 mm, equivalent to 50 mm.

These lenses are also categorized as a primary lens because it has several advantages, which have a maximum aperture is larger than other lenses, such as F.2, F1.8 or f1.2 so it can be used for shooting in low light conditions can produce images a richer color.

This is possible because of the presence of the maximum aperture, the camera can capture more light.

2. Wide-angle lens

These lenses are sometimes called wide lens. As the name suggests this lens has a very wide viewing angle, even on some lenses can provide a point of view approaching 180 degrees.

In practice this type of lens used to photograph the narrow room or to take a picture of an object as a whole when the object is relatively close to the photographer.

But keep in mind that the images produced from a wide-angle lenses tend to have higher levels of distortion compared to images produced by the normal lens.

Other records, this lens does not produce images as captured by the human eye, otherwise this lens gives the impression of 'more' than the real situation. The room may look 'more' high, 'more' big or 'more' width of the actual size.

3. Macro lens

Lens the size of 50mm, 90mm or 100mm lens with a macro written specifically designed for photographing subjects that are very close to the camera or other small objects.

Differences ordinary 50mm lens with a 50mm macro lens must lie in the closest focusing distance of the lens. On a regular 50mm lens, the closest focusing distance from the lens to the object about 50cm. As for the 50mm macro lens, closest focusing distance of the object can only 2cm.

Macro lenses can also be used to photograph distant objects, but the sharpness a bit low compared to other types of lenses, usually this type of lens used to photograph flowers, coins, dew drops, buttons, insects and other small objects.

4. Zoom lens

These lenses are designed to have several different viewpoints. There are a variety of zoom lenses, ranging from 2x zoom, 3x zoom (70-200mm), 10x zoom (35-350mm) up to 12x zoom.

To date, more than a lens that has a 3x zoom lacking images with consistent quality. Therefore, in general, professional zoom lens users only use 2x or 3x zoom lens only.

Some of the zoom lens is a telephoto lens (200-400mm), while others are wide-angle lens (10-20mm, 16-25mm) and the rest covers wide-angle to telephoto (28-200mm, 35-135mm).

Lens in the last category is often referred to as the zoom lens 'normal' and has been replaced as the primary lens solution use one lens for a variety of conditions.

5. Telephoto lenses

Known for its ability to magnify distant objects, and produce an undistorted image, the lens of this type is a favorite lens for photographing sporting events (soccer, Formula One, MotoGP, etc.). And do not forget to stage performances (concerts, theater, orchestra, etc.). Also did not escape the paparazzi lens also makes this type as its flagship lens.

Telephoto lenses can be categorized as normal telephoto lens (85mm, 100mm, 135mm, 200mm) telephoto zoom lens (28-300mm, 55-200mm, 70-200mm, 90-300mm, 100-300mm) and super-telephoto lens (300mm, 400mm , 500mm, 600mm).

6. Fisheye lens

In the world of photography, a fisheye lens is a wide-angle lens with an extreme breadth perspective. Vision area exceeds 100 degrees, or even sometimes exceed 180 degrees so as to produce images with a high level of distortion. Space is limited sharpness and automatically setting the camera focus is not really necessary.

This lens was originally developed for use in the field of astronomy, and so-called 'whole-sky lenses ". Then fisheye lenses quickly became popular in the field of photography because of the uniqueness of the distortion. These lenses are often used to capture the vast expanse of scenery as well as accentuate the curved shape of the earth.