- Lens Filters
A lens may be the most important part of a camera, because it forms and focuses photographic images. A filter, affixed in front of a camera lens, can help protect the lens from damage.
- Digital SLR Camera and Lens (Digital Video)
A digital SLR (single lens reflex) camera and its lens rotate in the viewport.
- Camera Lenses
A lens is an important and essential part of any camera. Learn about different types of camera lenses and find links to camera shops in each state.
- Digital Camera Lenses
Digital cameras enable photographers to quickly shoot quality photos with various lenses. This page includes a discussion of camera lenses and links to selected camera lens manufacturers.
- Eyeglass Lenses
Eyeglass lenses correct refractive errors in vision. Lenses may be for near-sightedness or far-sightedness, and may be unifocal, bifocal, or trifocal.
A pair of diopters is centered on a red background. A large number of cylinders, accessories, and prisms are neatly stored with the diopters, so they can be easily accessed by the optometrist or optician.
Camcorder Controls (Photograph)
The lens of a camera gathers light and focuses it on the imager, which converts the light into an electrical signal. Camcorder lenses can be adjusted in a variety of ways, including aperture, zoom, shutter speed, and gain.
- Spotting Scopes
Spotting scopes are telescopes with a large objective lens used for bird watching, hunting, and astronomy. Two main types are straight-through and angled.
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