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  2. List of standard zoom lenses - Wikipedia

    en.wikipedia.org/wiki/List_of_standard_zoom_lenses

    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]

  3. 35 mm equivalent focal length - Wikipedia

    en.wikipedia.org/wiki/35_mm_equivalent_focal_length

    Equivalent depth of field can be calculated the same way using the crop factor. [3] For example, a 50mm f/2 lens on a 2× crop factor Micro Four Thirds camera would be equivalent to a 100 mm (= 2×50 mm) f/4 (= f/(2×2)) lens on a full-frame digital SLR in terms of field of view, depth of field, total light gathered, [4] and diffraction effects ...

  4. Image sensor format - Wikipedia

    en.wikipedia.org/wiki/Image_sensor_format

    For example, the Nikon D3 and D700 cameras' nominally full-frame sensors actually measure 36 × 23.9 mm, slightly smaller than a 36 × 24 mm frame of 35 mm film. As another example, the Pentax K200D 's sensor (made by Sony ) measures 23.5 × 15.7 mm, while the contemporaneous K20D 's sensor (made by Samsung ) measures 23.4 × 15.6 mm.

  5. Medium format - Wikipedia

    en.wikipedia.org/wiki/Medium_format

    The Leaf Aptus-II 12's sensor size of 53.7 mm × 40.3 mm is 92% of the area of a 56 mm × 41.5 mm standard-sized 6 × 4.5 frame, 69% of a 56 mm × 56 mm square-sized 6 × 6 frame, and 45% of the area of a 56 mm × 84 mm 6 × 9 frame. Introduced in December 2010, the Pentax 645D is a 40 megapixel medium-format DSLR. The camera has a 44×33 mm ...

  6. Crop factor - Wikipedia

    en.wikipedia.org/wiki/Crop_factor

    A 50 mm (focal length) lens on an APS-C image sensor format (crop factor 1.6) images a slightly smaller field of view than a 70 mm lens on a 35 mm sensor format camera (full frame sensor). A 80 mm lens (1.6 × 50 mm = 80 mm) with a full frame camera gives the same field of view as this 50 mm lens and APS-C sensor format combination produces.

  7. I Rewatched This 25-Year-Old Mary Kate and Ashley Olsen Movie ...

    www.aol.com/rewatched-25-old-mary-kate-202201521...

    The Olsen twins single-handedly built a multimillion-dollar empire while simultaneously being some of the most popular people on the planet without much internet and pre-social media.

  8. Image credits: marykateolsen At one point in time, the Olsen twins were the talk of the town. Mary-Kate and Ashley starred in the US sitcom Full House before going on to becoming stars on their ...

  9. Micro Four Thirds system - Wikipedia

    en.wikipedia.org/wiki/Micro_Four_Thirds_system

    The 400 mm focal length in Micro Four Thirds has the same angle of view as an 800 mm focal length in full frame cameras. When compared to a full frame camera lens providing a similar angle of view, rather than weighing a few kilograms (several pounds) and generally having a length exceeding 60 cm (24 in) end to end, the optically stabilized ...