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Lens

What is it with many types of lenses. Today there are answers

The lens is made of glass objects well rounded smooth surface is divided into two types of convex and concave. Used to receive and exposure to supplies from outside the camera image (CCD. In a digital camera) lens the camera will have many different kinds of applications. In order to be suitable for use in each category.Buy lens...

Prior to the properties of the lens. Must understand that there is a different lens does. Normally, we would have heard the name of the lens like a 28mm lens. The lens 70-300 mm., Etc. In these figures, the size of the focal length. Or long duration (Focal Lenght) length is usually written on the edge of the lens. In order to show that the lens has the ease of use. The focal length of the lens will be told the length of it. Is measured in millimeters or inches. 

The focal length (the distance f in the picture) is the distance between the lens and the material of the camera itself. If we look at the picture, it can be seen that even the much more f (away from the lens, CCD feet), the corners of the image is still narrow down.

Any lens with a focal length of the lens. The longer alluding to narrow the angle of the shot and help shorten the visible to near. Such lenses Including lens distance (Telephoto Lens) Moreover lenses with different focal lengths. In addition to creating the image to the size of each. To create the effect of the resolution to be different, too. The focal length is much longer. Conversely, if the sharpness even shorter focal length how much it short. The sharpness of the image is greater. Therefore concluded that the length of the focus of the lens affects imaging is second.Buy lens...

1. Make the corners of the picture Wide or narrow

2. To make the contrast more or less.

The aperture of the lens (Aperture).

The size of the aperture of the lens. It can be said that the lens aperture wide open it.

This will have the effect of shooting two reasons.

1. To make light passing through the lens into the camera more. Make use of higher shutter speed.

2. Set a small aperture will produce an image with greater contrast range. In contrast, if the aperture size.

The images have a resolution decreases.

Read about the aperture and shutter speed can be found here.

The lens of the camera is divided into stages or the application below.

1. The standard lens (Standerd Lens) lens that features the photography. The image looks like the eye, look online. A lens focal length of 50 mm.

2. lens distance (Telephoto Lens) lens as a telescope. A lens with a focal length longer than conventional lenses. The shooting made narrower. Enlarge act is far from growing. As if that is situated close to the subject. Easy to shoot something in the distance. At that time I could not get into the camera at close range with an object, such as the shooting war, sporting as shooting fish lens with a focal length greater than 135 mm. Or more.Buy lens...

3. Wide-Angle Lens (Wide? Angle lens), a lens with a focal length. Shorter than a conventional lens As a result, the angle of the shot was taken much wider than a conventional lens. Has a very clear In the wide-angle lens as jar. To make things close up and not proportional (beautiful again) to take place in a limited can not set the camera away from the shooting, much like shooting things, high or very long that would take. In all images Behind the obstruction can not be taken back to the wall again, these lenses have a focal length of 16 - 35 mm.

4. Fisheye lens (Fish eye lens) lens is an image that looks like the image seen when looking at the fish from the water. Eat a lens to shoot wider angle lenses of all kinds. Is probably as wide as 180 degrees, so that images that differ from ordinary photos. And the need for eye-catching images to the viewer. The angle of the shot 3-4 times wider than the more common things to look for in this type of photography. Is a photographer's foot is stuck on the image. If you stand in the glory of the image. Taking the side of the image to view the big hitters this lens.

It provides more depth. Despite the long time taken extreme measures, such as a lens focal length of 10 mm. Down.

5. Zoom (Zoom lens) lens with a focal length on one. Very popular today Choose a focal length of any lens by saying, for example, 70 -200 mm., 85-300 mm., 800-1200 mm. And so on.

6. Macro lens (Macro Lens) similar to conventional lenses, but can take a very close-up photography has made taking detailed close like insects or small materials and so on. The camera will be able to approach the subject more than half a foot. The current macro lens for SLR cameras often produced out of a zoom lens as well.Buy lens...