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The centre of the diaphragm's aperture coincides with the optical axis of the lens system. Most modern cameras use a type of adjustable diaphragm known as an iris diaphragm, and often referred to simply as an iris. See the articles on aperture and f-number for the photographic effect and system of quantification of varying the opening in the ...
To list some of Miranda's cameras with external diaphragm, there was the Miranda Sensorex line. The internal auto-diaphragm Miranda cameras consisted of the Miranda 'D', the popular Miranda 'F', the 'FV' and the 'G' model, which had a larger than normal reflex mirror thereby eliminating viewfinder image vignetting when the camera was used with ...
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.
The term was originally used to refer to film cameras which "bridged the gap" between point-and-shoot cameras and SLRs. [4] [5] Like other cameras, most current bridge cameras are digital. These cameras typically feature full manual controls over shutter speed, aperture, ISO sensitivity, color balance and metering.
Around 2010, the mirrorless technology utilized in point and shoot cameras made the way to the interchangeable lens cameras and slowly replaced DSLR technology. As of 2022, all the major camera brands (Except Pentax) ceased development and production of DSLRs and moved on to mirrorless systems. These systems offer multiple advantages to the ...
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The Arlow-Abbe condenser is a modified Abbe condenser that replaces the iris diaphragm, filter holder, lamp and lamp optics with a small OLED or LCD digital display unit. The display unit allows for digitally synthesised filters for dark-field, Rheinberg, oblique and dynamic (constantly changing) illumination under direct computer control.
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