Videography lens features

The focus is on a video camera requires manual adjustment.

Feature this photo

Good video record, you need good lenses. Lens for photos are small, lightweight, and inexpensive. Professional camera lenses, providing years of use, run from $4,000 to $100,000. Even if you objectively spend a professional "Cine" no, you don't have to features in a video lens or lenses.

Similar search: Aperture

The aperture of a camera lens determines how much light into the camera enters. If you adjust the aperture in a camera, it can jump from one to the next. This is unacceptable in video cameras: may need to spoil the quality of footage while shooting, to change the aperture so that sharp jumps. Video lens apertures change gradually. An another lens is characteristic, that the mesh size tends to be of a lens to the next be consistent, so that none are significant differences when you change lenses.

Zoom

Coming as still cameras video lenses with a zoom option. If the lens not zoom, has about the largest field of view and depth: people in the background stay in focus along with people closer to you. If you zoom, the lens out you in focus on a small area, which may have nothing to do, you eliminate distracting background information. What is visible in the background while zooming but blurred, can go.

Problems.

Lenses capture exactly not always images. Optical errors distort the image for example by you zoom in on different parts of the image to a different degree. Unusually large appear farther away compared to objects closer objects perspective errors. High-quality video lenses reduce the rate of optical aberration and distortion, to provide a more accurate picture. Zoom lenses have an another image problem: the further you enlarge it, that shake more vibrations or hands effect on the image.

Focus

Auto focus systems work better than manual focus for still photography, how, a rapid series of shots without to stop you can take to change settings. Video lense, need manual focus: you're in the middle of shooting with the lens decide it needs a new direction could ruin the video. Manual focus controls also focus more accurately, which makes it easier to choose the right focus, if the subject moves.

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