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  2. Fisheye lens - Wikipedia

    en.wikipedia.org/wiki/Fisheye_lens

    Sigma 15 mm f /2.8 EX DG Diagonal Fisheye; TTArtisan 11mm f /2.8 Fisheye (notable as the first fisheye lens marketed, among others, in Leica M rangefinder mount and for Fuji GFX (the lens does not cover the full GFX frame, though!). An expert found it is actually 15 mm in focal length and has an angle of view of only 176°.

  3. List of third-party Sony E-mount lenses - Wikipedia

    en.wikipedia.org/wiki/List_of_third-party_Sony_E...

    35mm f/1.2 Cine Lens [469] 50mm f/1.1 Cine Lens [470] 75mm f/1.4 Cine Lens [471] Photo Lens 35mm f/1.7 Lens [472] Thingyfy. Pinhole Pro S 11mm (pinhole lens) (0.14mm aperture) [473] Pinhole Pro S 26mm (0.1-0.8mm aperture) [474] Pinhole Pro X 18-36mm (F160-240) [475] [476] TTartisan. 500mm F6.3 [477] (2023-09 [478]) Venus Optics. Laowa 9mm f/5.6 ...

  4. Fujifilm X-mount - Wikipedia

    en.wikipedia.org/wiki/Fujifilm_X-mount

    In April 2020, the same company introduced a 33 mm f/1.4 lens with an aperture ring. ... 60 mm f/2.8 macro lens (mark 1 and 2) TTartisan Lenses (as of may 2024)

  5. Fujifilm G-mount - Wikipedia

    en.wikipedia.org/wiki/Fujifilm_G-mount

    The Fujifilm G-mount is a type of interchangeable lens mount designed by Fujifilm for use in the cameras of their Fujifilm GFX series. These cameras have interchangeable lenses . The respective lenses are designed for 43.8 mm x 32.9 mm medium format sensors.

  6. List of Micro Four Thirds lenses - Wikipedia

    en.wikipedia.org/wiki/List_of_Micro_Four_Thirds...

    TTArtisan TTArtisan 17mm f / 1.4 MFT 17mm: 34mm f / 2.8 f / 1.4 40.5 ? 248 g (8.7 oz) ... The fish eye lens Laowa 4 mm f/2,8 of the manufacturer Venus Optics with an ...

  7. f-number - Wikipedia

    en.wikipedia.org/wiki/F-number

    A 100 mm focal length f /4 lens has an entrance pupil diameter of 25 mm. A 100 mm focal length f /2 lens has an entrance pupil diameter of 50 mm. Since the area is proportional to the square of the pupil diameter, [6] the amount of light admitted by the f /2 lens is four times that of the f /4 lens. To obtain the same photographic exposure, the ...

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