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2. Sigma Corporation - Wikipedia

   en.wikipedia.org/wiki/Sigma_Corporation

   Sigma Corporation. Sigma Corporation (株式会社シグマ, Kabushiki-gaisha Shiguma) is a Japanese company, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan. Although Sigma produces several camera models, the company is best ...

3. Canon EF lens mount - Wikipedia

   en.wikipedia.org/wiki/Canon_EF_lens_mount

   In 1989 Canon was the first to create a full frame f/1.0 AF (AutoFocus) lens and the only one until today with the Canon EF 50mm f/1.0L USM. In 1993 Canon was the first to create an interchangeable 10× superzoom lens for SLR cameras. That lens was Canon EF 35-350mm f/3.5-5.6L USM.

4. Canon EOS R5 - Wikipedia

   en.wikipedia.org/wiki/Canon_EOS_R5

   The Canon EOS R5 is a professional full-frame mirrorless interchangeable-lens camera officially announced by Canon on July 9, 2020 [1] alongside the lower-resolution EOS R6 and various new RF mount lenses.

5. Sigma 30mm f/1.4 EX DC HSM lens - Wikipedia

   en.wikipedia.org/.../Sigma_30mm_f/1.4_EX_DC_HSM_lens

   The Sigma 30mm f/1.4 EX DC HSM is a wide-aperture photographic lens made by the Sigma Corporation, equipped with a Hyper Sonic Motor (abbreviated HSM, Sigma's trade name for photo lens focusing technology using ultrasonic motor ). The lens was produced in Canon EF mount, Four Thirds System, Nikon F-mount, Pentax K mount, the SA mount, and the ...

6. 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] They are called standard zoom lenses, because the ...

7. Sigma 8-16mm f/4.5-5.6 DC HSM lens - Wikipedia

   en.wikipedia.org/wiki/Sigma_8-16mm_f/4.5-5.6_DC...

   MSRP. $1100 USD USD. The Sigma 8–16mm lens is an enthusiast-level, ultra wide-angle rectilinear zoom lens made by Sigma Corporation specifically for use with APS-C small format digital SLRs. It is the first ultrawide rectilinear (non- fisheye lens) zoom lens with a minimum focal length of 8 mm, designed specifically for APS-C size image ...