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2. Telephoto lens - Wikipedia

   en.wikipedia.org/wiki/Telephoto_lens

   Telephoto lens. A telephoto lens, also known as telelens, is a specific type of a long-focus lens used in photography and cinematography, in which the physical length of the lens is shorter than the focal length. [ 1]: 93 This is achieved by incorporating a special lens group known as a telephoto group that extends the light path to create a ...

3. Digital camera - Wikipedia

   en.wikipedia.org/wiki/Digital_Camera

   Digital camera. Front and back of Canon PowerShot A 95 (c.2004), a once typical pocket-sized compact camera, with mode dial, optical viewfinder, and articulating screen. A digital camera, also called a digicam, [ 1] is a camera that captures photographs in digital memory. Most cameras produced today are digital, [ 2] largely replacing those ...

4. Image stabilization - Wikipedia

   en.wikipedia.org/wiki/Image_stabilization

   Image stabilization (IS) is a family of techniques that reduce blurring associated with the motion of a camera or other imaging device during exposure.. Generally, it compensates for pan and tilt (angular movement, equivalent to yaw and pitch) of the imaging device, though electronic image stabilization can also compensate for rotation about the optical axis (). [1]

5. Aspheric lens - Wikipedia

   en.wikipedia.org/wiki/Aspheric_lens

   An aspheric biconvex lens. An aspheric lens or asphere (often labeled ASPH on eye pieces) is a lens whose surface profiles are not portions of a sphere or cylinder. In photography, a lens assembly that includes an aspheric element is often called an aspherical lens . The asphere's more complex surface profile can reduce or eliminate spherical ...

6. Chromatic aberration - Wikipedia

   en.wikipedia.org/wiki/Chromatic_aberration

   Chromatic aberration. Focal length of lens varies with the color of light. In optics, chromatic aberration ( CA ), also called chromatic distortion, color aberration, color fringing, or purple fringing, is a failure of a lens to focus all colors to the same point. [ 1][ 2] It is caused by dispersion: the refractive index of the lens elements ...

7. Digital photography - Wikipedia

   en.wikipedia.org/wiki/Digital_photography

   The rise of mirrorless cameras has changed digital photography. These cameras are popular for their modern tech, portability, and versatility. Unlike DSLRs, mirrorless cameras have electronic viewfinders or LCD screens for previewing photos and manual controls. They are smaller and lighter, but may have fewer lens options and shorter battery life.