June 19, 2014, Saitama, Japan – Tamron Co., Ltd. (President & CEO: Morio Ono; Headquarters: Saitama City), a leading manufacturer of optical equipment, announces the release of the 18-200mm F/3.5-6.3 Di III** VC (Model B011) for Canon mount. This lightweight, compact high-power zoom lens, originally released for Sony mount in 2011, is designed for mirrorless interchangeable-lens cameras with APS-C sized sensors and sports a stylish design and is available in two color options.
|Product Name||Date of Launch|
|18-200mm F/3.5-6.3 Di III VC (Model B011) for Canon||June 26, 2014|
* "Mirrorless interchangeable-lens cameras" are also known as "Compact System Cameras."
**Di III (Digitally integrated design): A designation Tamron gives to lenses engineered specifically for mirrorless interchangeable-lens cameras with no internal mirror box or pentaprism, adopting an optical design that matches the characteristics of the digital camera. (Note: These lenses cannot be used with digital SLR cameras with built-in mirror box or conventional 35mm film SLR cameras).
|Focal Length||18-200mm (equivalent to 28-310mm in the 35mm/full-frameformat)|
|Angle of View||(Diagonal) 75˚ 33´-7˚ 59´
(Horizontal) 65˚ 36´-6˚ 38´
(Vertical) 46˚ 21´-4˚ 15´
|Lens Construction||17 elements in 13 groups|
|Minimum Focus Distance||0.5m (19.7 in)|
|Maximum Magnification Ratio||1:3.7 (at f=200mm: MFD 0.5m)|
|Filter Size||φ62mm (2.4in)|
|Weight||460 g (16.2oz)|
|No. of Diaphragm Blades||7|
|Minimum Aperture||F/22 – 40|
|Standard Accessories||Flower-shaped lens hood|
|Compatible Mounts||Canon / Sony|
Specifications, appearance, functionality, etc., may be changed without prior notice.
*1 Length is the distance between the mount face and the tip of the lens.
The B011's autofocus mechanism uses a stepping motor that is an ideal match for the contrast detection autofocus system used in mirrorless interchangeable-lens cameras. The stepping motor's actuator allows finely tuned control of angular rotation, and since it drives the focusing mechanism directly without an intermediate reduction gear, it also provides superbly quiet performance.
Tamron’s VC mechanism employs a three-coil system, whereby three driving coils activate the shake-compensating VC lens group electromagnetically via three steel balls. The VC lens elements are held in place only by contact with the steel balls, achieving smooth movement with little friction. This provides a stable viewfinder image with excellent tracking performance that eliminates the blur from handheld shots for cleaner, crisper shots.
Tamron’s conventional VC (Vibration Compensation) unit has a moving magnet system with heavy magnets in the vibration-compensating lens. However, the new VC mechanism adopts a lightweight moving coil system that reduces the load on the drive system. This allows the drive to be operated with smaller coils and magnets, reducing the weight and size for the entire VC unit. In addition, improvements to software and other elements of the VC mechanism used in the 18-200mm Di III VC have made the mechanism even quieter.