Things You Should Know Before Buying Discount Cameras

Stereoscopy ... Many 3D displays use this method to convey images. It was first invented by Sir Charles Wheatstone in 1838...

List Of Telescope Types ... Telescopes can be classified by optical design, such as refracting telescopes. Telescopes can also be classified by where they are placed, such as space telescopes...

Machine Vision ... MV implementations also have used digital cameras capable of direct connections (without a framegrabber) to a computer via FireWire, USB or Gigabit Ethernet interfaces...

Single-lens Reflex Camera ... Prior to the development of SLR, all cameras with viewfinders had two optical light paths: one path through the lens to the film, and another path positioned above (TLR or twin-lens reflex) or to the side (rangefinder)... Most SLR cameras permit upright and laterally correct viewing through use of a roof pentaprism situated in the optical path between the reflex mirror and viewfinder...

Independent Film ... Because of this, a number of filmmakers responded by building their own cameras and moving their operations to Hollywood, California, where the distance from Edison's home base of New Jersey made it more difficult for the MPPC to enforce its patents...

View Camera ... The bellows is a flexible, accordion-pleated box, which encloses the space between the lens and film, and has the ability to flex to accommodate the movements of the standards. The front standard is a board at the front of the camera which holds the lens and, usually, a shutter...

Camera ... Cameras may work with the light of the visible spectrum or with other portions of the electromagnetic spectrum... A majority of cameras have a lens positioned in front of the camera's opening to gather the incoming light and focus all or part of the image on the recording surface... The diameter of the aperture is often controlled by a diaphragm mechanism, but some cameras have a fixed-size aperture...

Camera Lens ... While in principle a simple convex lens will suffice, in practice a compound lens made up of a number of optical lens elements is required to correct (as much as possible) the many optical aberrations that arise. Some aberrations will be present in any lens system...

International Space Station ... The ISS serves as a microgravity and space environment research laboratory in which crew members conduct experiments in biology, human biology, physics, astronomy, meteorology and other fields. The station is suited for the testing of spacecraft systems and equipment required for missions to the Moon and Mars...

Box Camera ... Etienne Carjat (1828–1906) another French photographer created "le Phobus'" around the late 1870s. It was a simple mahogany box camera...

Photography ... Digital cameras use an electronic image sensor based on light-sensitive electronics such as charge-coupled device (CCD) or complementary metal-oxide-semiconductor (CMOS) technology...

Mobile Phone Features ... The common components found on all phones are: A battery, providing the power source for the phone functions. An input mechanism to allow the user to interact with the phone...

Full-spectrum Photography ... Modified digital cameras can detect some ultraviolet, all of the visible and much of the near infrared spectrum, as most digital imaging sensors are sensitive from about 350nm to 1000nm...

Folding Camera ... Folding cameras were dominant from the beginning of the 20th century to WWII, and medium format folders were produced in USSR until the 1960s... The use of folding cameras began to decline after WWII with the development of the 35mm film format, which allowed the construction of small-sized cameras without use of a bellows...

Medium Format (film) ... In digital photography, medium format refers either to cameras adapted from medium format film photography uses, or to cameras making use of sensors larger than that of a 35 mm film frame... Often, medium format film cameras can be fitted with digital camera backs, converting them to digital cameras, but some of these digital backs, especially early models, use sensors smaller than a 35 mm film frame... As of 2006, medium format digital photography sensors were available in sizes of up to 36 by 48 mm, with 39 million pixels for use with commonly available professional medium format cameras...