A Primer On Digital Cameras Everything You Need To Know

Film ... It is produced by recording photographic images with cameras, or by creating images using animation techniques or visual effects. The process of filmmaking has developed into an art form and industry. Films are cultural artifacts created by specific cultures, which reflect those cultures, and, in turn, affect them...

Optics ... Most optical phenomena can be accounted for using the classical electromagnetic description of light. Complete electromagnetic descriptions of light are, however, often difficult to apply in practice...

Angénieux Retrofocus ... The telephoto lens configuration combines positive and negative lens groups with the positive at the front, so as to reduce the back focal distance of the lens (the distance between the back of the lens and the image plane) to a figure shorter than the focal length. This is for practical, not optical reasons, because telephotos can then be made shorter and less cumbersome...

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...

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...

Educational Technology ... Technology of education is most simply and comfortably defined as an array of tools that might prove helpful in advancing student learning and may be measured in how and why individuals behave. Educational Technology relies on a broad definition of the word "technology." Technology can refer to material objects of use to humanity, such as machines or hardware, but it can also encompass broader themes, including systems, methods of organization, and techniques...

Digital Photography ... Until the advent of such technology, photographs were made by exposing light sensitive photographic film, and used chemical photographic processing to develop and stabilize the image. By contrast, digital photographs can be displayed, printed, stored, manipulated, transmitted, and archived using digital and computer techniques, without chemical processing...

Mariner Program ... Mission: Mars flybys Mass 413 kg (908 lb) Sensors: wide- and narrow-angle cameras with digital tape recorder, infrared spectrometer and radiometer, ultraviolet spectrometer, radio occultation and celestial mechanics... Mission: orbit Mars Mass 998 kg (2,200 lb) Sensors: wide- and narrow-angle cameras with digital tape recorder, infrared spectrometer and radiometer, ultraviolet spectrometer, radio occultation and celestial mechanics Status: Mariner 8 – Destroyed in a launch vehicle failure... Mission: Venus and Mercury flybys Mass: 433 kg (952 lb) Sensors: twin narrow-angle cameras with digital tape recorder, ultraviolet spectrometer, infrared radiometer, solar plasma, charged particles, magnetic fields, radio occultation and celestial mechanics Status: Mariner 10 – Defunct...

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

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...

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...

Film Crew ... Crew are distinguished from cast, the actors who appear in front of the camera or provide voices for characters in the film. Crew are also separate from producers, those who own a portion of either the film company or the film's intellectual property rights...

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

Photographic Lens Design ... For the lens designer, achieving these objectives will also involve ensuring that internal flare, optical aberrations and weight are all reduced to the minimum whilst zoom, focus and aperture functions all operate smoothly and predictably. However, because photographic films and electronic sensors have a finite and measurable resolution, photographic lenses are not always designed for maximum possible resolution since the recording medium would not be able to record the level of detail that the lens could resolve...

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...

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 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...

Digital Camera ... Digital cameras can do things film cameras cannot: displaying images on a screen immediately after they are recorded, storing thousands of images on a single small memory device, and deleting images to free storage space...

Movie Camera ... On June 21 1889, William Fries-Greener was issued patent no. 10131 for his 'chronophotographic' camera...

Twin-lens Reflex Camera ... History Double-lens cameras were first developed around 1870, due to the realization that having a second lens alongside the taking lens would mean that one could focus without having to keep swapping the ground glass screen for the plate, making the time delay in taking a picture less...