photography lensTo an apprentice photographer, the wide range of lenses make them go crazy.

It’s quite surprising for many apprentice photographers to choose a perfect lens for their shot [Selecting the right digital camera  lens].

Understanding about lenses is itself the first step to success.

Photography is capturing light on an electronic sensor or a photographic emulsion.

The lens, film and sensor are the important components which affect the quality of image.

Lenses are classified into different types using different specifications. The specifications vary from focal length to zoom lenses.

The classification of lenses:

Lens varies with different specifications. One such specification is focal length.

Standard lenses: Focal length is ~50mm (millimeters). This lens is usually supplied with a single-lens reflex (SLR) camera. The general purpose of these lenses is having a close view to the human eye. The lenses view is sharp. The lenses are compact and light weight.

Wide angle lenses: Focal length is <50mm. This lens is used in shooting natural landscapes, outdoor shooting, group shots and panoramas. This is preferable for subjects which require strong perspectives. The characteristics of wide angle lenses are deep depth of fields and constant refocusing. When you are shooting a subject that is moving fast, you need this wide angle lenses to click for the right shots.

Medium telephoto lens: Focal length is 85-135mm. These lenses are used for clicking portrait pictures. When compared to the lenses with focal length 50mm, these lenses isolate the subject from the background and increase the flattening of the image giving a natural look to the pictures. These lenses are popular for candid photography.

Long telephoto lenses: Focal length is >135m, used in sports photography, nature photography, and other styles in documentary photography. Like the medium telephoto lenses, they also pick the subject from the frame isolating the background.

Special lenses:

Macro lenses are used in clicking close-up shots giving the original size of the object in the ratio of 1:1. For e.g.: An object which is 10mm will come into view as 10mm on the 35mm frame. This lens shows the original size of the image in any picture frame. Angle of view is narrower than 25°.

Fish eye lenses: These lenses are used to distort the perceptive lenses, creating a fish eye image in 180°. Focal length varies from 7~16mm. These are specialized lenses in picking the correct images and can produce memorable images.

Super wide angle lens: Focal length is < 24mm. This lens show great exaggerated perspective in images and restricts vantage points. This lens is widely used by real estate agents in promoting their estates.

Super telephoto lens: Focal length is > 300mm. These longer telephoto lenses are of high price and offer the same quality. You need a tripod to carry the camera, which is attached with a super telephoto lens. This lens is very heavy, often the weight of the lens yield images with a shake. It is used by tabloid journalists when spying on celebs.

What ever be the lens, you need to take proper care. Always use branded accessories for cleaning the lens. Never use a tissue to clean; use a blower brush, lint free cloth and a cleaning fluid for cleaning the lens [Lens care tips].


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