Camera Lenses

                                            

A camera lens (also known as photographic lens or photographic objective) is an optical lens or assembly of lenses used in conjunction with a camera body and mechanism to make images of objects either on photographic film or on other media capable of storing an image chemically or electronically.

While in principle a simple convex lens will suffice, in practice a compound lens made up of a number of optical lens elements is required to correct (as much as possible) the many optical aberrations that arise. Some aberrations will be present in any lens system. It is the job of the lens designer to balance these out and produce a design that is suitable for photographic use and possibly mass production.

There is no major difference in principle between a lens used for a still camera, a video camera, a telescope, a microscope, or other apparatus, but the detailed design and construction are different.

A lens may be permanently fixed to a camera, or it may be interchangeable with lenses of different focal lengths, apertures, and other properties.

                                    

Frequent cleansing of lenses is very important in the way that it'll really help the camera to perform out its best. we must also understand that we must really take a care of  lenses for some reason that it is expensive and also that it really plays a valuable role in the camera's function to produce a good value of photos

                                         

Camera Lenses have different sizes according to their function, the bigger the better output it produces mostly if you will take a picture that needs a massive zooming action like capturing small things such as insects, tiny objects or subjects that a photographer wants to capture for some purposes

Article from: http://en.wikipedia.org/wiki/Camera_lens

Derive by : Ferdinand F. Salamat