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This is a list of smartphones with a telephoto lens that offers a focal length (35mm equivalent) of at least 100mm or "4× optical zoom" with an imaging area equivalent to a 1/3.5″ or larger sensor. Smartphone lenses are often marketed in terms of "optical zoom" [1] relative to the phone's main camera. For example, 120mm is usually referred ...
For example, a zoom lens with focal lengths ranging from 100 mm to 400 mm may be described as a 4:1 or "4×" zoom. The term superzoom or hyperzoom is used to describe photographic zoom lenses with very large focal length factors, typically more than 5× and ranging up to 19× in SLR camera lenses and 22× in amateur digital cameras.
There is no precise definition of the term, but lenses marketed as "standard zoom" usually cover a range of at least 30mm to 70mm in terms of 35mm equivalent focal length with an optical zoom ratio of 2.5× (e.g. 28-70mm) to 5× (e.g. 24-120mm) — the most common being 3× (e.g. 24-70mm). [1]
The best lenses for iPhone and Android phones will elevate your photos and vidos giving them a more professional feel The best lenses for iPhone and Android phones in 2022: add-on phone lenses ...
As an example, one modern lens (Canon EF 400 mm f /4 DO IS) achieves a telephoto ratio of 0.58 in part due to a front (converging) lens group which incorporates diffractive optics. Diagram of a typical telephoto lens with a large positive lens and a smaller negative telephoto group combined to create a much longer focal length - f.
The iPhone is one of the most-used cameras in the world. However, in pursuit of the frequently illusive "perfect shot," more often than not you're required to take your iPhone into potential harm ...
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