Dedicated for digital SLR cameras
By incorporating an optical design for exclusive use with digital SLR cameras with smaller-size imagers, this high-power zoom lens provides the same focal length, when converted to a 35mm format, equivalent to Tamron’s 28-300mm. Therefore, you can meet virtually every photographic opportunity with this single zoom lens without changing lenses. When paired with a wideangle zoom, you can thoroughly enjoy digital SLR photography with a combined equivalent focal length coverage of 27-300mm.
Enhanced peripheral illumination
Peripheral light fall-off is minimised when compared with that of conventional lenses for film cameras so that images are uniformly bright from the centre to the periphery.
Since the lens is designed exclusively for digital SLR photography, it provides high image quality in terms of resolution, contrast and flatness of image field.
Revolutionary minimum focus distance – 45cm (17.7″) for 1:3.7* macro capability
It is important for a multi-purpose zoom lens to be able to get close to small subject. The new optical/mechanical design configuration of this lens allows an MFD (Minimum Focus Distance) of 45cm (17.7″). At 200mm the maximum magnification ratio is 1:3.7*, close-up photography is easy and convenient.
* The Maximum Magnification Ratio of this lens is 1:3.7 while the Maximum Magnification Ratio of the AF28-300mm (Model A061) is 1:2.9. However, the 18-200mm can fill the frame with almost the same scope as the A061 does when shooting with a 35mm SLR camera, since the new lens is exclusively designed for digital SLR cameras with smaller-size imagers. The Maximum Magnification Ratio of 1:3.7 is equivalent to 1:2.8 when converted to 35mm film format.
High power, yet compact and lightweight thanks to newly developed mechanisms
New and complex mechanisms are hidden in this lens’ compact construction. Several engineering innovations were required to downsize the design, produce high-precision parts and increase durability, imbuing this multi-purpose zoom lens with excellent portability and ease of use.
Flower-shaped hood is supplied with the lens to shield stray light
Included as a standard accessory, the flower-shaped hood matches the rectangular shape of the image sensor to most effectively block the interference of superfluous light rays entering from outside the borders of the image area, helping to ensure sharp, clear, flare-free images with crisp detail in the shadow areas.
Useful when carrying the lens/camera over the shoulder
Another original Tamron mechanical engineering concept is the zoom-lock mechanism, which prevents the weight of the lens barrel from extending the lens when carried on the camera pointing downward. This eliminates the danger of accidentally knocking the lens while walking around and enhances responsiveness in the field. Simply zoom the lens out to its widest focal length and use the sliding zoom-lock switch to lock the barrel in place.
New external design on the Di-II series conveys “high-performance, high-precision” image
The external appearance has been enhanced with a gold-coloured band between the focus and zoom rings, marking it distinctively as a Tamron Di II lens. New rubber patterns of the zoom and focus control rings complement the digital camera design style and provide improved handling.