It brings together high-power zoom lens technology such as the latest optical design and cam structure. The world's first (*1) super telephoto high-power zoom lens that covers 18-400mm. ■The world's first (*1) super telephoto high magnification zoom that achieved a telephoto end of 400mm.For the first time in the world, he achieved a focal length of 18-400mm and a zoom ratio of 22.2x for his APS-C size. The telephoto end of 400mm enables super-telephoto shooting with an angle of view equivalent to 620mm in 35mm format, and allows you to easily create powerful images unique to super-telephoto lenses, such as the ``pull effect'' and ``compression effect'' that only a super-telephoto lens can provide. Now you can enjoy it. While maintaining the convenience of a high-power zoom lens, you can cover everything from wide-angle to super-telephoto without changing lenses, so you can capture a variety of scenes such as landscapes, portraits, food, sports, animals, etc. that caught your eye while traveling. You can take pictures. *1: As an interchangeable lens for digital SLR cameras. (As of May 2017. According to Tamron research)
■Achieves good depiction performance across the entire zoom range from wide-angle to super-telephoto
The optical system consists of 16 lenses in 11 groups, and is based on the latest optical design, with special glass materials such as LD (Low Dispersion) lenses and aspheric lenses effectively arranged. As a result, various aberrations such as chromatic aberration and distortion are suppressed, achieving excellent depiction performance as a super telephoto, high-power zoom lens. By optimizing the power distribution of each lens group, we have achieved both optical performance and size as a 400mm super telephoto high-power zoom. Additionally, since the maximum magnification is 1:2.9, you can also enjoy telemacro photography.
■Lightweight and compact design that inherits the philosophy of high-magnification zoom
Although it is a high-power zoom that covers a super telephoto range of 400mm (equivalent to 620mm in 35mm format), it is lightweight and compact with an overall length of 121.4mm and a mass of 705g (*2). In order to smoothly operate the lens extension amount for the 22.2x zoom ratio, he developed a new three-stage extension type lens barrel. By dividing the cam into more parts than before, we have ensured comfortable operation and stability when zooming. Model B028 inherits Tamron's philosophy for high-power zooms: ``capturing everyday life in a practical size.''
*2: Length and mass are for Nikon.
■Uniquely developed “HLD” that realizes compactness and high-precision AF
The AF drive uses Tamron's proprietary "HLD (High/Low torque-modulated Drive)". HLD achieves excellent driving force and power savings. By rotating efficiently from low to high speeds, accurate and quiet focusing is possible. Additionally, since the motor can be made smaller, there is greater freedom in designing the AF module, and by arranging it to match the shape of the lens barrel, it contributes to a space-saving design.
■Equipped with the camera shake correction mechanism "VC" required for 400mm super telephoto shooting
Equipped with Tamron's original image stabilization mechanism "VC (Vibration Compensation)" while keeping the size compact. Effectively suppresses camera shake that often occurs in low-light situations such as indoors or at sunset, resulting in sharper depictions. In addition, the stabilized viewfinder image makes it easy to frame during super-telephoto shooting, which is a feature of the Model B028, and allows you to aim at your subject without stress.
■Pursuing convenience as a regular lens
In consideration of outdoor shooting, a simple drip-proof structure is adopted. Enables comfortable and safe shooting. It also features a zoom lock mechanism to prevent it from falling due to its own weight when carried.
■Compatible with the optional accessory “TAP-in Console”
It is compatible with the accessory "TAP-in Console (Model TAP-01)" that allows users to update the lens firmware, customize the AF focus position, the operation mode of the image stabilization mechanism, etc.
■Exterior design focused on functionality and operability
While inheriting the soft curved structure and details of the SP lens series, the design features a form that obediently follows the internal structure, a thin luminous gold ring, and even the shape of the switch box, all with a focus on functionality and operability. It has a high design.
[Product specifications]
●Filter size: 72mm
●Mass: Approximately 705g
●Length: Approximately 121.4mm
●Maximum diameter: approx. 79mm
●Lens composition: 16 elements in 11 groups
●Focal length (35mm format equivalent): 28-620mm
【accessories】
Flower-shaped hood, lens cap