In photography and cinematography, a normal lens is a lens that reproduces a field of view that appears "natural" to a human observer. In contrast, depth...

wide-angle lens is a lens covering a large angle of view. Conversely, its focal length is substantially smaller than that of a normal lens for a given...

shot from close using a wide-angle lens (with an angle of view wider than a normal lens). Objects close to the lens appear abnormally large relative to...

A camera lens, photographic lens or photographic objective is an optical lens or assembly of lenses (compound lens) used in conjunction with a camera...

cheaper than the multi-lens design. Aspheric elements are used in the design of multi-element wide-angle and fast normal lenses to reduce aberrations....

a typical "normal" lens has a 50 mm focal length. A lens with a focal length shorter than normal is often referred to as a wide-angle lens (typically...

An ultra wide-angle lens is a lens whose focal length is shorter than that of an average wide-angle lens, providing an even wider view. The term denotes...

opposed to a fixed-focal-length (FFL) lens (prime lens). A true zoom lens or optical zoom lens is a type of parfocal lens, one that maintains focus when its...

photography in lower light, and a shallower depth of field. A normal lens or "normal prime" is a lens with a focal length about equal to the diagonal size of...

Large format lenses are photographic optics that provide an image circle large enough to cover the large format film or plates used in large format cameras...

visible light are also called "lenses", such as microwave lenses, electron lenses, acoustic lenses, or explosive lenses. Lenses are used in various imaging...

An intraocular lens (IOL) is a lens implanted in the eye usually as part of a treatment for cataracts or for correcting other vision problems such as near-sightedness...

length lenses are used. A long-focus lens is one of three basic photographic lens types classified by relative focal length, the other two being a normal lens...

Gauss lens is a compound lens used mostly in camera lenses that reduces optical aberrations over a large focal plane. The earliest double Gauss lens, patented...

A pancake lens is a colloquial term for a flat, thin camera lens assembly (short barrel). The majority are prime lenses of a normal or slightly wider...

Wide-angle lens: angle of view wider than 60° and focal length shorter than a normal lens. Long focus lens: angle of view narrower than a normal lens. This...

eye's lens from its normal location. A partial dislocation of a lens is termed lens subluxation or subluxated lens; a complete dislocation of a lens is termed...

Lens speed is the maximum aperture diameter, or minimum f-number, of a photographic lens. A lens with a larger than average maximum aperture (that is,...

The design of photographic lenses for use in still or cine cameras is intended to produce a lens that yields the most acceptable rendition of the subject...

A telecentric lens is a special optical lens (often an objective lens or a camera lens) that has its entrance or exit pupil, or both, at infinity. The...

50 mm lenses. This Double-Gauss lens replaces the 50mm f/1.8 (non-D). A 50 mm prime lens is the normal lens for the 135 film format. This lens was introduced...

4-element lenses of medium focal length, sometimes referred to as a "Normal" lens. Mutar : teleconverters. Mirotar : mirror lenses. Most of these lenses were...

expressed as the angular size of the view cone, as an angle of view. For a normal lens focused at infinity, the diagonal (or horizontal or vertical) field of...

systems as a Normal lens or a Telephoto lens. Lens Controller. A lens controller is a device used to control a motorized (ZFI) lens. Lens controllers may...

after, and the only lens made for new mounts were the standard types. The Start, Zenit-7 and Zenit-D utilized the same normal lens — a Helios-44 2/58....

the body plus normal lens was only $231.[citation needed] The EM accepts nearly all lenses with the Nikon F bayonet mount except lenses introduced in...

between 84° and 64° Normal, or Standard lenses (36–60 mm in 35 mm film format) cover between 62° and 40° Long focus lenses (any lens with a focal length...

no-compromise designs which Zeiss refers to as the "best in the world" in the normal lens and short telephoto categories. They cover the 35 mm format. Otus APO-Distagon...

50 mm lens is the one considered normal; any lens shorter than this is considered a wide angle lens and anything above is considered a telephoto lens. Even...

with Cook & Perkins Dallmeyer Dallon Tele-Anastigmat 5.6/500 lens The original normal lens for the 1600F and 1000F was the Kodak Ektar 80 mm f/2.8. It...