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  2. Sigma 150-500mm f/5-6.3 DG OS HSM lens - Wikipedia

    en.wikipedia.org/wiki/Sigma_150-500mm_f/5-6.3_DG...

    The Sigma APO 150-500mm F5-6.3 DG OS HSM lens is a super-telephoto lens produced by Sigma Corporation. It contains three SLD (Special Low Dispersion) glass elements to provide correction for chromatic aberration. It is aimed toward advanced consumer level photographers, and is available in Nikon, Canon, Pentax and Sigma camera mounts.

  3. Sigma 50-500mm f/4-6.3 DG lens - Wikipedia

    en.wikipedia.org/wiki/Sigma_50-500mm_f/4-6.3_DG_lens

    The Sigma 50-500mm f / 4-6.3 EX DG HSM is a super-telephoto zoom lens produced by Sigma Corporation. It contains four SLD (Special Low Dispersion) glass elements to provide correction for chromatic aberration.

  4. Sigma Corporation - Wikipedia

    en.wikipedia.org/wiki/Sigma_Corporation

    150–500mm: f / 5–6.3 No Yes Yes Yes APO 150–600mm: f / 5–6.3 No Yes Yes Yes C 150–600mm: f / 5–6.3 No Yes Yes Yes S 170–500mm f / 5–6.3 No Yes No No 200–500mm: f / 2.8 Yes Yes No No 2x teleconverter included, allowing 400–1000mm f / 5.6 300–800mm: f / 5.6 Yes Yes No Yes APO 350-1200mm f / 11 No No No No APO

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

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

    18mm f/2.8 Cine Lens [478] 21mm f/1.5 Cine Lens [479] 25mm f/1.4 Cine Lens [480] 35mm f/1.2 Cine Lens [481] 50mm f/1.1 Cine Lens [482] 75mm f/1.4 Cine Lens [483] Photo Lens 35mm f/1.7 Lens [484] Thingyfy. Pinhole Pro S 11mm (pinhole lens) (0.14mm aperture) [485] Pinhole Pro S 26mm (0.1-0.8mm aperture) [486] Pinhole Pro X 18-36mm (F160-240) [487 ...

  6. Tokina - Wikipedia

    en.wikipedia.org/wiki/Tokina

    Tokina AT-X Pro 12–24 f /4.0 lens Tokina Co., Ltd. ( 株式会社トキナー , Kabushiki-gaisha Tokinā ) is a Japanese manufacturer of photographic lenses and CCTV security equipment. Lens designations

  7. Smartglasses - Wikipedia

    en.wikipedia.org/wiki/Smartglasses

    The lenses of smart sunglasses can be manufactured out of multiple adaptive cells, therefore different parts of the lens can exhibit different optical properties. For example, the top of the lens can be electronically configured to have different polarization filter characteristics and different opacity than the lower part of the lens.

  8. List of Micro Four Thirds lenses - Wikipedia

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

    On Jan 9, 2012 Sigma announced its first two lenses for Micro Four Thirds, the "30mm f / 2.8 EX DN and the 19mm f / 2.8 EX DN lenses in Micro Four Thirds mounts". [58] In a press release posted on January 26, 2012, Olympus and Panasonic jointly announced that "ASTRODESIGN, Inc., Kenko Tokina Co., Ltd. and Tamron Co., Ltd. join[ed] the Micro ...

  9. Corrective lens - Wikipedia

    en.wikipedia.org/wiki/Corrective_lens

    A corrective lens is a transmissive optical device that is worn on the eye to improve visual perception. The most common use is to treat refractive errors: myopia, hypermetropia, astigmatism, and presbyopia. Glasses or "spectacles" are worn on the face a short distance in front of the eye. Contact lenses are worn directly on the surface of the eye.

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