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The Sigma APO 150-600mm F5-6.3 DG OS HSM lens is a super-telephoto lens produced by Sigma Corporation. It is actually a range of two slightly different lenses based on a common design: the Sports and Contemporary .
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.
The Sigma 60-600mm f / 4.5-6.3 DG lens is a super-telephoto zoom lens produced by Sigma Corporation since 2018. It succeeds an earlier 10× zoom lens (50–500mm) which was introduced by Sigma in 2000 and is commonly known as the "Bigma". It is aimed at advanced consumers.
Aperture settings are usually not continuously variable; instead, the diaphragm has typically 5–10 discrete settings. The normal "full-stop" f-number scale for modern lenses is as follows: 1, 1.4, 2, 2.8, 4, 5.6, 8, 11, 16, 22, 32, but many lenses also allow setting it to half-stop or third-stop increments.
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The Sigma 150mm f / 2.8 APO Macro EX DG HSM is a consumer-level macro lens. It is constructed with a plastic body and a metal mount. This lens features a distance window with magnification scale. A nine-blade, maximum aperture of f / 2.8 gives this lens the ability to create very shallow depth of field effects.
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.
Tamron head office in Minuma-ku, Saitama, Japan. Tamron Co., Ltd. (株式会社タムロン, Kabushiki-gaisha Tamuron) is a Japanese company manufacturing photographic lenses, optical components and commercial/industrial-use optics.