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Viewfinder eyepiece. A digital single-lens reflex camera ( digital SLR or DSLR) is a digital camera that combines the optics and mechanisms of a single-lens reflex camera with a solid-state image sensor and digitally records the images from the sensor. The reflex design scheme is the primary difference between a DSLR and other digital cameras.
Canon EF mount (Japan): first all-electronic contact camera lens mount for interchangeable lens cameras. Introduced by Canon EOS 650 and EOS 620 35 mm SLR bodies and Canon EF lenses, this lens mount is essentially a computer data port. Mechanical camera-to-lens linkages can link auto-diaphragm lenses and instant return mirror, focal-plane ...
The Canon EF 75-300mm f/4-5.6 IS USM (Japan) of 1995 was the first interchangeable lens with built-in image stabilization (called Image Stabilizer; for Canon EOS 35mm SLRs). Image stabilized lenses were initially very expensive and used mostly by professional photographers. Stabilization surged into the amateur digital SLR market in 2006.
A single-lens reflex camera (SLR) is a camera that typically uses a mirror and prism system (hence "reflex" from the mirror's reflection) that permits the photographer to view through the lens and see exactly what will be captured.
A pentamirror is an optical device used in the viewfinder systems of various single-lens reflex cameras instead of the pentaprism. It is used to reverse again the laterally reversed image coming from the reflex mirror. Instead of the solid block of glass of the prism in pentaprism system, here 3 mirrors are used to perform the same task.
Esophoria is an eye condition involving inward deviation of the eye, usually due to extra-ocular muscle imbalance. It is a type of heterophoria. Cause. Causes include: Refractive errors; Divergence insufficiency; Convergence excess; this can be due to nerve, muscle, congenital or mechanical anomalies.
A pentaprism. A perspective drawing showing a roof pentaprism commonly used in a single lens reflex camera (SLR). The image is flipped laterally by the prism. A pentaprism is a five-sided reflecting prism used to deviate a beam of light by a constant 90°, even if the entry beam is not at 90° to the prism. The beam reflects inside the prism ...
3 frame/s. General. Dimensions. 148 × 108 × 68 mm, 660 g. The Canon EOS 650 is a 35 mm single-lens reflex camera. It was introduced on 2 March 1987, [1] Canon 's 50th anniversary, [2] and discontinued in February 1989. [3] It was the first camera in Canon's new EOS series, which was designed from scratch to support autofocus lenses.
Prism dioptres. Prism correction is commonly specified in prism dioptres, a unit of angular measurement that is loosely related to the dioptre. Prism dioptres are represented by the Greek symbol delta (Δ) in superscript. A prism of power 1 Δ would produce 1 unit of displacement for an object held 100 units from the prism. [2]
As per the official note: Corrects a phenomenon in which when using the camera with the EF-S 18–135 mm f / 3.5–5.6 IS USM or EF 70–300 mm f / 4–5.6 IS II USM lens, even if lens aberration correction is set to "Enable", correction will not be applied.