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Comparison of simplified back-illuminated and front-illuminated pixel cross-sections. A back-illuminated (BI) sensor, also known as back-side illumination (BSI) sensor, is a type of digital image sensor that uses a novel arrangement of the imaging elements to increase the amount of light captured and thereby improve low-light performance.
The Sony α7 and α7R have the model numbers ILCE-7 and ILCE-7R respectively. In addition, the α7S, the α7 II, and the α7R II have the model numbers ILCE-7S, ILCE-7M2, and ILCE-7RM2. Sony's new model naming prefix strives to unify model names. "ILC" stands for Interchangeable Lens Camera, followed by an indicator of A-mount "A" or E-mount "E ...
The Sony α700 (DSLR-A700) was the second model launched in the Sony α series of APS-C sensor digital single-lens reflex cameras, following the α100, with several improvements over the latter. Some of the camera's technology was inspired by the former Konica Minolta Maxxum 7D , such as the man-machine command interface/commands, LCD menus ...
Various third-party lens manufacturers have released the following lenses for Sony E-mount cameras since 2010. They are also compatible with Hasselblad E-mount cameras. They are also compatible with Hasselblad E-mount cameras.
Low key light accentuates the contours of the subject by throwing areas into shade while a fill light or reflector may illuminate the shadow areas to control contrast. [2] [1] The relative strength of key-to-fill, known as the lighting ratio, can be measured using a light meter. Low key lighting has a higher lighting ratio, e.g., 8:1, than high ...
The converging rays from this group are intercepted by the rear (image-facing) lens group, sometimes called the "telephoto group," which has a negative focus. This second group of elements spread the cone of light so that it appears to have come from a lens of much greater focal length. Diagram of a catadioptric mirrors lens.
There are many sources of stray light. [6] For example: Ghost orders in diffraction gratings. These can be caused by periodic variations in the spacing of grooves in ruled gratings, for instance. Light scattered towards a telescope from particles along the optical path to a star. Light emitted by components of the optical system.
The ambient light sensor of a Google Pixel 4a smartphone under a microscope. An ambient light sensor is a component in smartphones, notebooks, other mobile devices, automotive displays and LCD TVs. It is a photodetector that is used to sense the amount of ambient light present, and appropriately dim the device's screen to match it.