The Barlow lens, named after Peter Barlow, is a diverging lens which, used in series with other optics in an optical system, increases the effective focal...

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

the telephoto lens, in reflecting form, was first described by Johannes Kepler in his Dioptrice of 1611, and re-invented by Peter Barlow in 1834. Histories...

built an achromatic doublet lens of joined flint glass and crown glass. A derivative of this design, named a Barlow lens, is widely used in modern astronomy...

An achromatic lens or achromat is a lens that is designed to limit the effects of chromatic and spherical aberration. Achromatic lenses are corrected...

teleconverter or Barlow lens. A combined system of a lens and a focal reducer has smaller back focus than the lens alone; this places restrictions on lenses and cameras...

plano-concave lens fitted into an eyepiece adaptor which superficially resembles a Barlow lens. Coma of a single lens or a system of lenses can be minimized...

An eyepiece, or ocular lens, is a type of lens that is attached to a variety of optical devices such as telescopes and microscopes. It is named because...

Look up barlow in Wiktionary, the free dictionary. Barlow may refer to: Barlow River (Chibougamau River), Quebec Barlow, Yukon, a local community of Yukon...

percentage) and widen the field of view, providing opposite effects of a Barlow lens. Star Diagonal: Used to change the angle of the light coming out of a...

or even 200 times (with a 5 mm in combination with the included 2× Barlow lens). However, a magnification of more than 125× would not be recommended...

altitude of about 36,089 feet (11,000 m). The photographer used a 1,200 mm (47 in) telescope and 2x Barlow lens in order to take this photo from the ground....

Wikimedia Commons has media related to Teleconverters. Barlow lens Canon Extender EF Convertible lens Nikon F-mount teleconverter Telecompressor Teleside...

Bakelite – Leo Baekeland Barker code - Ronald Hugh Barker Barlow lens - Barlow's wheel – Peter Barlow Bath Oliver – William Oliver Beaufort scale – Sir Francis...

secondary lens or accessory lens is a lens designed to be used in conjunction with another lens, called the primary lens. A secondary lens may be designed...

higher magnifications the image quality significantly reduces, usage of a Barlow lens increases the effective focal length of an optical system—multiplies...

to attach to the rear of a regular lens. The Barlow lens, a negative achromat magnifier invented by Peter Barlow in 1833, is still used to increase the...

A binoviewer for an astronomical telescope. 1 - Eyepiece 2 - Compensation slide 3 - Prism 4 - Beam splitter 5 - Body 6 - Barlow lens...

like positive projection, produces a magnified image. A negative lens, usually a Barlow or a photographic teleconverter, is placed in the light cone before...

Together with Peter Barlow, he also invented an afocal system to extend the focal length of telescopes, called the Barlow lens. He was born in London...

The first practical telephoto lens was developed by Peter Barlow in the early 1800s, with the eponymous Barlow lens referring to the negative achromat...

for focus and another to switch in and out a magnification-doubling Barlow lens rounded out the controls. The cast-aluminum double-fork arm mount was...

stability criterion, Barkhausen–Kurz tube Peter Barlow, English mathematician and physicist — Barlow lens Thomas Wilson Barnes, British chess master – Barnes...

Life thru a Lens is the debut solo studio album by English singer-songwriter Robbie Williams. It was Williams' first solo album following his departure...

Deirdre Barlow (also Hunt, Langton and Rachid) is a fictional character from the British ITV soap opera Coronation Street, played by Anne Kirkbride. She...

photographed from the ground using a Canon 400D, a 1200mm telescope and 2x Barlow lens. Fat Albert, a U.S. Marine Corps C-130T Hercules with the Blue Angels...

mounts and tripods. Tele Vue also manufactures special nebula filters, Barlow lenses, special image amplifiers known as Powermates, the "Paracorr" coma-corrector...

(Trans. Edin. Soc., 1791, 3, p. 3), P. Barlow, and F. S. Archer overcame the difficulty by constructing fluid lenses between glass walls. Fraunhofer prepared...

(aerodynamics) Bargmann's limit Bargmann–Wigner equations Barkhausen effect Barlow's law Barlow lens Barn (unit) Barnett effect Baroclinity Barotropic Barotropic vorticity...

known as eyeglasses and spectacles, are vision eyewear with clear or tinted lenses mounted in a frame that holds them in front of a person's eyes, typically...