If you favor one eye over the other, you’ll want the viewfinder to cooperate and be there for you, left or right. Sometimes it has to do with dexterity–whether you’re right handed or a lefty. Everyone has their favorite viewfinder location–on the left or right, in the middle or on top of the camera. By sliding lens elements in the viewfinder either closer or farther away from the eye, the diopter lens can help many a camera person to shoot comfortably without glasses or contacts. If your eyesight isn’t 20/20, or if you’re farsighted or have to wear glasses, you need an adjustable viewing lens called a diopter. This takes the form of magnifying lenses mounted in the eyepiece–the hole into which you peer. Small viewfinders require optics to increase the apparent image size and to help you focus your eye. The traditional viewfinder, with its black rubber eyepiece and recessed image, ranges from about 1.5 inches across down to less than a half inch. Both kinds exist in monochrome or color, although miniature color CRTs are extremely rare.Ī CRT display uses a miniature picture tube that glows when an electron beam hits it from inside LCDs have a flat screen made up of tiny crystals that go from transparent to opaque on (electronic) command, letting light (from a source behind) shine through. There are two basic designs: cathode ray tube (CRT) and liquid crystal display (LCD). Here are a few ways in which they differ: As with most things, one person’s favorite viewfinder can be another’s cursed device. Whether color or monochrome, camcorder viewfinders come in different styles with different features. To view in color, we take advantage of the latest in liquid crystal technology, microscopic transistors and compact optics.
Optical viewfinder tv#
While black and white viewfinders are indeed miniature TV monitors (picture tubes shrunk down to under an inch across), color models work on a very different principle.
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