Tamron Co., Ltd. is a Japanese company manufacturing photographic lenses, optical components and commercial/industrial-use optics. Tamron Headquarters is located in Saitama City in the Saitama Prefecture of Japan.
The Pentax K-mount, sometimes referred to as the "PK-mount", is a bayonet lens mount standard for mounting interchangeable photographic lenses to 35 mm single-lens reflex (SLR) cameras. It was created by Pentax in 1975, and has since been used by all Pentax 35 mm and digital SLRs and also the MILC Pentax K-01. A number of other manufacturers have also produced many K-mount lenses and K-mount cameras.
Originally produced as Konica Minolta AF Zoom DT 18-200mm f/3.5-6.3 (D) by Konica Minolta in 2005, and currently produced by Sony, the Sony α DT 18-200mm f/3.5-6.3 (SAL-18200) is compatible with cameras using the Minolta A-mount and Sony A-mount lens mounts. The DT designation means this lens is designed to be used with a camera with an APS-C size sensor. When the 1.5× crop factor is considered, the lens has an effective equivalent 27–300mm focal length. The lens is derived from the Tamron AF 18-200mm f/3.5-6.3 XR Di II LD Aspherical [IF] (models A14M/A14S).
The Fujifilm X-mount is a lens mount for Fujifilm interchangeable lens mirrorless cameras in its X-series, designed for 23.6mm x 15.6mm APS-C sensors.
The EF28-200mm f/3.5-5.6 USM lens was a superzoom lens made by Canon Inc.
The Tamron 16-300mm F/3.5-6.3 Di II VC PZD MACRO is a superzoom lens designed for digital crop sensor cameras.
Zoom creep is a phenomenon in zoom lenses where the angle of view of the lens changes when gravity is allowed to freely act on it. If the lens has a zoom ring, holding it when the lens is held upwards or downwards will prevent this change. In lenses with push-pull zoom, creep is prevented by holding the extending part of the lens. Some lenses, such as the Tamron SP AF 17-50mm f/2.8 XR Di II LD Aspherical [IF] and Canon EF-S 18-135mm f/3.5-5.6 IS STM, have a zoom lock to stop the effect.
The Tamron 18-270mm F/3.5-6.3 Di II VC PZD is a superzoom lens for APS-C DSLR cameras, announced by Tamron on December 9, 2010. The Sony/Minolta A mount version is simply called Tamron 18-270mm F/3.5-6.3 Di II PZD as it lacks image stabilisation.
The Tamron SP 150-600mm F/5-6.3 Di VC USD is a super telezoom lens for DSLR cameras, announced by Tamron on November 7, 2013. The Sony A mount version is called Tamron SP 150-600mm F/5-6.3 Di USD as it lacks image stabilisation.
The Tamron AF 18-200mm F/3.5-6.3 XR Di II LD Aspherical [IF] Macro is a superzoom lens by Tamron, initially announced in 2005. A year later, Tamron announced the Tamron AF 18-250mm f/3.5-6.3 Di II LD Aspherical [IF] Macro with a slightly larger zoom range. However, in 2008, the 18-200 model was re-released with a built-in motor for Nikon bodies lacking a motor in the body - at that time the Nikon D40, D40x and D60.
The Tamron SP 15-30mm F/2.8 Di VC USD is an interchangeable wide-angle zoom lens announced by Tamron on September 12, 2014.
The Tamron 28-300mm F/3.5-6.3 Di VC PZD is an interchangeable superzoom full-frame DSLR camera lens announced by Tamron on February 6, 2014 and released in late June 2014 for the Canon and Nikon mounts and on 30 October 2014 for the Sony mount.
The Tamron SP 70-200mm F/2.8 Di VC USD is an interchangeable telezoom lens with constant, large aperture. It is available in Nikon, Canon and Sony mounts and was announced by Tamron on September 13, 2012.
The Tamron AF 18-270mm F/3.5-6.3 Di II VC LD Aspherical (IF) MACRO is an interchangeable superzoom camera lens for Canon EF-S and Nikon F APS-C bodies, announced by Tamron on July 30, 2008. Less than two years later, it was succeeded by the more compact Tamron 18-270mm F/3.5-6.3 Di II VC PZD.
The Tamron SP AF 60mm F/2 Di II LD IF Macro is an interchangeable macro lens designed for Canon, Nikon and Sony crop bodies and announced by Tamron on March 24, 2009. Among its peers, it stands out by its large aperture of f/2.
The Tamron 18-200mm F/3.5-6.3 Di III VC is an APS-C superzoom lens announced by Tamron on December 8, 2011. It can be mounted on Canon EOS-M and Sony E-mount (NEX) camera bodies.
Nikon Z-mount is an interchangeable lens mount developed by Nikon for its mirrorless digital cameras. In late 2018, Nikon released two cameras that use this mount, the full-frame Nikon Z 7 and Nikon Z 6. In late 2019 Nikon announced their first Z-mount camera with an APS-C sensor, the Nikon Z 50. In July 2020 the entry-level full-frame Z 5 was introduced. In October 2020, Nikon announced the Nikon Z 6II and Nikon Z 7II, which succeed the Z 6 and Z 7, respectively. The APS-C lineup was expanded in July 2021, with the introduction of the retro styled Nikon Z fc, and in October 2021, Nikon unveiled the Nikon Z 9, which effectively succeeds the brand's flagship D6 DSLR. The APS-C lineup was further expanded with the Nikon Z 30, announced at the end of June 2022.
The HD Pentax-D FA 70–210mm f/4.0 ED SDM WR lens is a telephoto zoom lens for the Pentax K-mount. The lens was on the roadmap since 2019, has been announced in January 2020 and should be available from March 2020. It is an additional full-frame lens to reboot Pentax' involvement in that format, the last previously introduced newly developed full-frame lens being the D FA* 50mm ED SDM AW in 2018. On Pentax APS-C cameras, the D FA 70–210mm has an equivalent focal length range of 107–322mm.
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