Several Kinds of Telephoto Lenses

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Telephoto lenses view angle within 20 degrees, focal length can reach few millimeters or hundreds millimeters. Long focal length lens is divided into ordinary telephoto lens and super telephoto lens two categories. Ordinary telephoto lens focal length is close to standard lens, and a super telephoto lens focal length is far greater than the standard lens.

Telephoto lens focal length is long, small view angle, a large imaging on the film. So in the same distance can produce greater image than standard lens. It is suitable for distant objects.Using long focal length lens you should generally use high sensitivity and fast shutter speed, such as the use of 200mm telephoto lens shooting, its shutter speed should be 1/250 seconds or more, In order to prevent the handheld camera shake caused the image paste. Under normal circumstances shooting, in order to maintain the stability of the camera, it is best to fix the camera on a tripod, without the tripod, trying to find rely to help stabilize the camera.

Then the following Telephoto Lenses you should have a look.

1. KELDA 900mm F8 Telephoto Manual Mirror Lens

2. KELDA 650-1300mm Telephoto Manual Zoom Mirror Lens

3. BANNER 46mm 2.0X Telephoto Lens