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Taken with minimum aperture at night time with flash. Details: F-stop: F/5.6 (Min aperture), Exposure time: 1/60 sec, ISO speed: 3200, Focal Length: 55 mm, Flash fired: Yes, White Balance: Auto, Shot at day or night: Night time. The Nikon D5100 is a 16.2-megapixel DX-format DSLR F-mount camera announced by Nikon on April 5, 2011. [3]
Increasing f-stop decreases the aperture of a lens. In photography, stopping down refers to increasing the numerical f-stop number (for example, going from f / 2 to f / 4), which decreases the size (diameter) of the aperture of a lens, resulting in reducing the amount of light entering the iris of a lens. [1] [2]: 112
Half-stop steps are used on some cameras. Usually the full stops are marked, and the intermediate positions click but are not marked. As an example, the aperture that is one-third stop smaller than f /2.8 is f /3.2, two-thirds smaller is f /3.5, and one whole stop smaller is f /4. The next few f-stops in this sequence are:
A standard format for tag data in digital camera files. [10] f: f-number, f-stop. The numerical value of a lens aperture. The ratio of the focal length of the lens divided by its effective aperture diameter. [4] FF: Full frame, where the image sensor is approximately the same size as a 35 mm film: 36 × 24 mm. FP: Focal plane.
The E series uses a unique additional optical system that enables the small sensor to capture the field of view of a 35mm film, with a crop factor of 1. This comes not at the expense of the F-stop of the lenses, because the light is bundled to the 2 ⁄ 3 inch CCD sensor with approximately 16 times smaller area.
Olympus Pen F with 40mm f1.4 Olympus Pen FT with 38mm f 1.8 The Olympus Pen F , Pen FT and Pen FV are very similar half-frame 35 mm single-lens reflex (SLR) cameras with interchangeable lenses produced by Olympus of Japan between 1963-1966 (Pen F), 1966-1972 (Pen FT) and 1967-1970 (Pen FV).
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