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2. 35 mm equivalent focal length - Wikipedia

   en.wikipedia.org/wiki/35_mm_equivalent_focal_length

   35 mm equivalent focal lengths are calculated by multiplying the actual focal length of the lens by the crop factor of the sensor. Typical crop factors are 1.26× – 1.29× for Canon (1.35× for Sigma "H") APS-H format, 1.5× for Nikon APS-C ("DX") format (also used by Sony, Pentax, Fuji, Samsung and others), 1.6× for Canon APS-C format, 2× for Micro Four Thirds format, 2.7× for 1-inch ...

3. iPhone hardware - Wikipedia

   en.wikipedia.org/wiki/IPhone_hardware

   The headphone socket on the first-generation iPhone is recessed into the casing, making it incompatible with most headsets without the use of an adapter. [25] The iPhone 7 and later have no 3.5 mm headphone jack, [26] and instead headsets must connect to the iPhone by Bluetooth, use Apple's Lightning connector, or (for traditional headsets) use ...

4. iPhone 11 Pro - Wikipedia

   en.wikipedia.org/wiki/IPhone_11_Pro

   The iPhone 11 Pro and Pro Max both include a triple-lens 12MP rear camera array. There is one ƒ/2.4 ultra-wide-angle lens with a 120-degree field of view and 2× optical zoom out, one ƒ/1.8 wide-angle lens, and one ƒ/2.0 telephoto lens with 2× optical zoom in.

5. Wide-angle lens - Wikipedia

   en.wikipedia.org/wiki/Wide-angle_lens

   For example, a 28 mm lens on the DSLR (given a crop factor of 1.5) would produce the angle of view of a 42 mm lens on a full-frame camera. So, to determine the focal length of a lens for a digital camera that will give the equivalent angle of view as one on a full-frame camera, the full-frame lens focal length must be divided by the crop factor.

6. iPhone SE (2nd generation) - Wikipedia

   en.wikipedia.org/wiki/IPhone_SE_(2nd_generation)

   The second-generation iPhone SE (also known as the iPhone SE 2 or the iPhone SE 2020) is a smartphone developed and marketed by Apple Inc. It is part of the 13th generation of the iPhone, alongside the iPhone 11 and 11 Pro/Pro Max models. Apple announced it on April 15, 2020, coinciding with the discontinuation of the iPhone 8 and 8 Plus.

7. Ultra wide angle lens - Wikipedia

   en.wikipedia.org/wiki/Ultra_wide_angle_lens

   An ultra wide-angle lens is a lens whose focal length is shorter than that of an average wide-angle lens, providing an even wider view. The term denotes a different range of lenses, relative to the size of the sensor in the camera in question. [1] For 1" any 9mm or shorter is considered ultra wide angle. For 4/3" any 10 mm or shorter lens is ...