Spy Diary

2010-02-05 06:38:07

Trying to find the right camera lens for your projects can be tough, but it does not have to be. There are some things that you should be aware about when searching for the right lens. There are many different kinds of camera lenses that perform in different ways. Each one can be a tricky balance between size, weight, cost, lens speed and image quality.

There are varying lens elements to consider, what a lens element does is it will bend the light to reflect the image in as much exacting details as it can upon the digital sensor. Optical oddities can come to pass when the light is not depicted accurately on the sensor. Vignettes, blurring, distortions, reduction in contrast and misalignment of colors may be present.

Another important thing to consider is the focal length of the lens. It establishes the angle of view as well as how subjects are magnified. If you would like your image to have a stretched or exaggerated perspective you will want a small focal length and would use a wide angled lens. If you would like your image to have a flattened or compressed perspective you would want a larger focal length you would use a telephoto lens. Where the photographer and camera is in relation to the photograph is the perspective.

Focal length can be a very useful tool in photography, so this can be an important feature you may wish to have. Other factors may influence your decision as well, telephoto lenses are more susceptible to camera shake, small hand movements may become magnified in the image. As well they require shorter exposure times in an attempt to minimize the blurring. Wider focal length lenses tend to be more resistant to flare.

The zoom lenses on a camera has many advantages, you can achieve many different perspectives of the same image without changing the lens. Zoom lenses allow you to change the composition without cropping the image. There are two types of zoom, digital zoom and optical zoom. Optical zoom is where the magnification of light is increased before it reaches the digital sensor. Digital zoom is where the image is interpolated (bent and distorted) after it has been acquired at the digital sensor.

Another lens is the prime lens, they have many advantages as well as disadvantages. You cannot change the composition of an image unless you crop it. They weigh less, and are faster than zoom lenses as well as easier on the wallet. An affordable prime lens is equivalently comparable, if not better than, in terms of image quality as a fair quality zoom lens. A good prime lens provides better light acquiring than a rapid zoom lens, something you have to consider for low light.

The aperture is an extremely important feature for a camera and something you will probably wish to consider as well. Aperture is the measure in which the lens opens up or closes at to allow in more or less light. They are listed as f-numbers to characterize how well they gather light. The lower the f-number the larger the aperture, and the faster they are.

This is probably the most confounding area for most people. The faster the shutter speed, the lower the f-number, the larger the aperture, thus the narrower the depth of the field is. The slower the shutter speed, the higher the f-number, the smaller the aperture, the wider the depth of the field is.

Find the best camera lense to shoot those pictures. Go online and look at the many camera lenses that are out on the market. Finding the best for your needs today.