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How Do I Know Which Lens Works For A Certain Picture? |
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Written by sayush
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Jan 29, 2008 at 06:36 PM |
Selecting the camera lens is an important part of choosing a digital camera
because by simply changing the lens, the potential image will change.
Understanding all about camera lens will help you get a good shot. They
can be categorized as fixed focal length lens, retractable zoom lens, fixed zoom lens, and interchangeable lens.
A digital SLR provides you with the most flexibility for a range of
shooting situations, with the best quality of optics, and is suitable
for the serious amateur or professional. If you want to upgrade the
lens quality, you do not have to buy a new camera. The downside is that
it can be quite expensive, and the lenses can be big and heavy.
The focal length can be different for the same lens mounted on a film
camera, which is very confusing to those who do not know much about
them. A digital SLR with interchangeable lens allows you to detach the whole lens from the camera
and replace it with a different compatibility. If you own several lens
for a traditional film camera, you can look for a compatible digital
SLR body.
The fixed focal length lens is best for novice photographers or those with a low budget. If you can afford it, upgrade to an auto focus
lens, with selectable macro or landscape focus modes. But the focal
length lens are very easy to use, and come in a compact design while
offering a wide-angle view, suitable for landscapes and group photos.
However, they usually produce the lowest optical quality. They do not
usually accept converters and cannot zoom onto distant objects.
Retractable zoom lens
extends from the body of the lens when the camera is switched on, and
retracts when it is switched off. They are suitable if we like taking
snapshots, have a limited budget, and are not sure about the type of
photos you will be shooting.
Retractable zoom lenses allow a very compact camera design and protect
the lens with a built-in cover. They offer a zoom range that is usually
limited to a magnification of 2X or 3X. They do not support lens
filters and converters. Lens extension prolongs the start-up time of
the camera and there are limited manual focus controls.
Fixed zoom lenses are fixed on to the body of the camera and do not
retract when we switch the camera off. They are suitable if we are a
serious amateur or business user and are not sure about the type of
pictures we will be shooting. Fixed zoom lenses usually accept
converters, filters, and flash rings.
Lens converters allow close-up, wide angle and telephoto photography.
They have a zoom range with a magnification of up to 12X. They offer
more precise zoom and manual focus control, through rings on the lens,
instead of buttons. They usually offer controls that are more advanced.
However, the controls may be more complicated than we want and the
camera is usually bulkier than one with retractable lenses.
When taking a photo, the first thing to do is choose the subject for
the picture. It can be a landscape, an animal, a child, a member of the
family, a still life, etc. If the photographer desires to bring the
subject closer, choose a telephoto lens - a lens with a focal length
greater tan 55mm. If the photograph needs to be broadened, the
selection of a wide-angle lens is chosen, a focal length of less, with
40mm.
When a regular lens is used, with a focal length of 40 to 55 mm, if
offers the maximum aperture range for a wider variety of lighting
conditions. If money is not a problem, go for a zoom lens. It reduces
expenses and increases flexibility, with only one lens.
Source: Free Articles
About the Author
Check out http://www.digicamland.org/ for more articles on digital cameras.
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