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Diagram showing circles of confusion for point source too close, in focus, and too far. In optics, a circle of confusion (CoC) is an optical spot caused by a cone of light rays from a lens not coming to a perfect focus when imaging a point source. It is also known as disk of confusion, circle of indistinctness, blur circle, or blur spot .
Canon EF 28-80mm f/3.5-5.6 USM. The EF 28–80mm f/3.5–5.6 is a zoom lens produced by Canon Inc. for their series of EOS single-lens reflex cameras. Canon produced eight iterations of the lens from 1989 to 1999. The other 28–80mm lens is the EF 28–80mm f/2.8–4L USM, which was an EF mount wide -to- normal zoom lens introduced by Canon in ...
In digital photography, the image sensor format is the shape and size of the image sensor . The image sensor format of a digital camera determines the angle of view of a particular lens when used with a particular sensor. Because the image sensors in many digital cameras are smaller than the 24 mm × 36 mm image area of full-frame 35 mm cameras ...
These Basic Earbuds. The Work Earbuds Classic. Raycon. For everyday wear that’s easy to take in and out, these buds are the perfect pick! See it! Get The Work Earbuds Classic (originally $120 ...
With your audiogram in place, you can now navigate to "Headphone Accommodations" and tune your AirPods to match your audiogram. Open your settings app > click accessibility > AirPods > audio ...
The 18–55mm USM lens. The Canon EF-S 18–55mm lens f/3.5–5.6 is a Canon -produced wide-angle to mid telephoto zoom lens for digital single-lens reflex cameras with an EF-S lens mount. The field of view has a 35 mm equivalent focal length of 28.8–88mm, and it is a standard kit lens on Canon's consumer APS-C DSLRs.
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.
Jupiter-21 200 mm f/4.0 lens. Jupiter-21 is a telephoto lens with focal length of 200mm. Its maximum aperture is f/4.0. The lens was made in multiple mounts and is frequently adapted to modern cameras nowadays. There are multiple versions of the lens. The most common one is the Jupiter-21M, which has M42 mount.