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13 relations: Camera lens, Canon EF lens mount, Crop factor, Digital single-lens reflex camera, Fisheye lens, List of Nikon F-mount lenses with integrated autofocus motor, Nikon F-mount, Pentax K-mount, Sigma 10mm f/2.8 EX DC Fisheye HSM lens, Sigma Corporation, Sigma SA-mount, Sony α, Ultrasonic motor.
Camera lens
A camera lens (also known as photographic lens or photographic objective) is an optical lens or assembly of lenses used in conjunction with a camera body and mechanism to make images of objects either on photographic film or on other media capable of storing an image chemically or electronically.
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Canon EF lens mount
Introduced in 1987, the EF lens mount is the standard lens mount on the Canon EOS family of SLR film and digital cameras.
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Crop factor
In digital photography, the crop factor, format factor or focal length multiplier of an image sensor format is the ratio of the dimensions of a camera's imaging area compared to a reference format; most often, this term is applied to digital cameras, relative to 35 mm film format as a reference.
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Digital single-lens reflex camera
A digital single-lens reflex camera (also called digital SLR or DSLR) is a digital camera that combines the optics and the mechanisms of a single-lens reflex camera with a digital imaging sensor, as opposed to photographic film.
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Fisheye lens
A fisheye lens is an ultra wide-angle lens that produces strong visual distortion intended to create a wide panoramic or hemispherical image.
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List of Nikon F-mount lenses with integrated autofocus motor
The following list of Nikon F-mount lenses with integrated autofocus motor includes only Nikon F-mount lenses which fully autofocus in all modes of all Nikon F-mount digital single-lens reflex cameras with and also without an autofocus motor.
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Nikon F-mount
The Nikon F-mount is a type of interchangeable lens mount developed by Nikon for its 35mm format Single-lens reflex cameras.
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Pentax K-mount
The Pentax K-mount, sometimes referred to as the "PK-mount", is a bayonet lens mount standard for mounting interchangeable photographic lenses to 35 mm single-lens reflex (SLR) cameras.
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Sigma 10mm f/2.8 EX DC Fisheye HSM lens
The Sigma 10mm f/2.8 EX DC fisheye is a photographic lens manufactured by Sigma Corporation.
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Sigma Corporation
is a Japanese company, manufacturing cameras, lenses, flashes and other photographic accessories.
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Sigma SA-mount
The Sigma SA-mount is a lens mount by the Sigma Corporation of Japan for use on their autofocus single-lens reflex and mirrorless cameras.
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Sony α
Sony α (the lower case to Greek letter alpha, often transliterated as Sony Alpha), is a camera system introduced on 5 June 2006.
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Ultrasonic motor
An ultrasonic motor is a type of electric motor powered by the ultrasonic vibration of a component, the stator, placed against another component, the rotor or slider depending on the scheme of operation (rotation or linear translation).
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Sigma 4.5mm F2.8 EX DC Circular Fisheye HSM lens.
References
[1] https://en.wikipedia.org/wiki/Sigma_4.5mm_f/2.8_EX_DC_Circular_Fisheye_HSM_lens
