• The new Model B023 achieves a broad focal length range of 10-24mm, the largest range among ultra-wide-angle zoom lenses for APS-C DSLR cameras. This is the 35mm equivalent of covering a very wide angle of view, from 16mm ultra-wide angle to 37mm semi-wide angle. A photographer can enjoy diverse wide-angle expressions with just this one lens, from dynamic landscapes far beyond the normal human field of vision to simple, casual snapshots.
  *1 Among ultra-wide-angle zoom lenses for APS-C DSLR cameras (As of January, 2017; Tamron)

• The optical design of the new Model B023 consists of 16 lens elements in 11 groups. Special lens elements are utilized in an optimum configuration of one LD (Low Dispersion) lens element, one XLD glass element, one molded glass aspherical element, and one hybrid aspherical lens. While curbing an increase in the size of the optical system, the new lens very effectively compensates for a wide variety of aberrations in the entire zoom range, including transverse chromatic aberration, comatic aberration and distortions that tend to become more prominent with a wide-angle lens.
  Tamron’s highly regarded BBAR (Broad-Band Anti-Reflection) Coating and the optical design paying close attention to internal reflections in the lens barrel also curb the effects of harmful light rays that tend to occur with a wide-angle lens, achieving excellent resistance against ghosting and flare seen in backlighting situations.

• In response to the requests of many customers who have asked the company to equip a wide-angle lens with image stabilization, we have now installed Tamron’s acclaimed VC (Vibration Compensation) on the new Model B023. Optimizing the actuator and the control algorithm has made it possible to incorporate the VC, while maintaining the compact design of the previous Model B001. The VC especially enhances the photographer’s freedom in handheld shooting at dusk or in a dimly lit room, and under other relatively low light conditions, as the mechanism proves particularly effective in the shooting conditions with slower shutter speeds.

• Tamron’s new HLD (High/Low torque modulated Drive) has been developed for use as the AF drive system for Model B023. With its outstanding driving power and stability, the HLD is capable of smoothly controlling the AF mechanism of the new Model B023 that is actually equipped with large focusing lens elements. When shooting in AF mode, the Full-time Manual Focus override allows you to instantly make fine focusing adjustments manually, without having to switch between modes.

• While enhancing image quality, adding new functions and substantially improving the basic performance, Model B023’s space-saving design has ensured an optimum configuration for components such as the VC and AF unit, thus successfully reducing overall length compared to the previous Model B001. The lightweight and compact body with outstanding ease of use will prove to be very well-balanced when attached to an APS-C DSLR camera.

• The front surface of the foremost lens element is coated with a protective fluorine compound that is water- and oil-repellant. The lens surface is easier to wipe clean and is less vulnerable to the damaging effects of dirt, dust, moisture and fingerprints, allowing for much easier maintenance. For greater protection when shooting outdoors, leak-proof seals throughout the lens barrel help protect your equipment.

• An electromagnetic diaphragm system, which has been a standard feature for Canon-mount lenses, is now employed in Nikon-mount lenses*2. More precise diaphragm and aperture control is possible because the diaphragm blades are driven and controlled by a motor through electronic pulse signals.
  *2 Available only with cameras compatible with the electromagnetic diaphragm (D3100, D3200, D3300, D3400, D5000, D5100, D5200, D5300, D5500, D5600, D7000, D7100, D7200, D300, D300S) (As of January, 2017; Tamron)

• The optional TAP-in Console provides a USB connection to your personal computer, enabling you to easily update your lens’s firmware as well as customize features including fine adjustments to the AF and VC.

• While inheriting the design that makes use of a lot of organic curves and the delicately polished form down to fine details that characterize the SP lens series, the new Model B023 comes with a highly sophisticated design that also places much importance on the lens’s functionality and ease of use, featuring an overall form that faithfully encompasses the internal structures within, a slim Luminous Gold brand ring, the switch shape and the distance-scale window design.

• Based on the current model (A009), the optical design has been revised and improved. Both the resolution and contrast reproduction performance far exceed the present levels.
  Bokeh has been enhanced and expanded to deliver outstanding background effects across the entire zoom range. Use of a circular diaphragm with nine blades further improves bokeh. The optical design of the new A025 consists of 23 elements in 17 groups. Optimum deployment of XLD (eXtra Low Dispersion) and LD (Low Dispersion) glass elements thoroughly eliminate chromatic aberrations, which tend to become particularly prominent in high-speed telephoto lenses, across the entire zoom range, while ensuring uniform, high-level image quality even on the periphery of the image plane.
• The new lens is also fully compatible with the TELE CONVERTER 1.4x (Model TC-X14)*2 and TELE CONVERTER 2.0x (Model TC-X20)*2, which increase the focal length of the lens to 1.4 times and 2 times the original, respectively. Both tele converters are carefully designed and constructed to provide outstanding high quality.

• Changes in zoom range when used with SP 70-200 mm F/2.8 Di VC USD G2 (Model A025)

  	Mounted on 35 mm full-frame DSLR camera	Mounted on APS-C format DSLR camera
  Without tele converter	70-200mm	Approx. 109-310mm
  With 1.4x tele converter*2	98-280mm	Approx. 152-434mm
  With 2.0x tele converter*2	140-400mm	Approx. 217-620mm

  Changes in magnification ratio when used with SP 70-200mm F/2.8 Di VC USD G2 (Model A025)

  	Maximum Magnification Ratio
  Without tele converter	1:6.1
  With 1.4x tele converter*2	1:4
  With 2.0x tele converter*2	1:3

  Available focusing mode when used with SP 70-200mm F/2.8 Di VC USD G2 (Model A025)

  	When using viewfinder	When using live view mode
  With 1.4x tele converter*2	AF Possible	AF*3Possible
  With 2.0x tele converter*2	AF Possible	AF*3Possible

  *2. For more detailed information about tele converters, please refer to the Tamron website.
  *3. Subjects with low contrast and/or luminosity values can sometimes result in out-of-focus images.

• Utilizing Tamron’s original VC (Vibration Compensation) system, which uses a moving coil mechanism, further reinforcement of the drive system power and control performance has now achieved the highest VC level in its class,*4 with an image stabilization performance of 5 stops according to the CIPA standard (when using VC Mode 3).Also, the VC system of Model A025 offers three VC modes, including one mode exclusively for panning. Photographers can freely choose between the different VC modes according to the shooting conditions. Even for telephoto shooting in low light, which tends to be severely affected by camera shaking, photographers can now enjoy jitter-free handheld shooting with much greater flexibility.
  *4. Among 70-200mm F/2.8 interchangeable lenses for full-frame DSLR cameras (as of January :Tamron)VC MODE 1 is the standard mode that strikes a great balance between the stability of the viewfinder image and the stabilization effects.
  VC MODE 2 is exclusively used for panning.
  VC MODE 3 prioritizes the stabilization of the captured images and forgoes the stabilization of the viewfinder image.With the optional accessory TAMRON TAP-in ConsoleTM, you can customize the configuration of
  VC MODE 1. Choose the viewfinder view of either standard or image priority.

• Model A025 is equipped with a USD (Ultrasonic Silent Drive) ring-type ultrasonic motor, whose outstanding responsiveness and control ensures accurate high-speed focusing. Incorporating two advanced, high-performance microcomputers and optimizing the algorithm has improved both the focusing speed and accuracy compared with SP 70-200mm (Model A009). Additionally, thanks to the Full-time Manual Focus override mechanism, photographers shooting with AF can instantaneously make fine focusing adjustments using MF without wasting time by switching the AF-MF mode back and forth.

• Improvements made to the focus cam and zoom cam inside the lens barrel have reduced the MOD from 1.3m (50.7 in) in the older Model A009 to 0.95m (37.4 in) for Model A025, which has a maximum magnification ratio of 1:6.1. The shorter MOD, coupled with the excellent optical performance of the SP 70-200mm (Model A025), allows photographers to further broaden their range of expression.

• The new A025 features Tamron’s original eBAND (Extended Bandwidth & Angular-Dependency) Coating, a technology that combines a nano-structured layer with an extremely low refractive index with the conventional multiple-layer coatings. Optimized and exclusively designed for this new zoom, the eBAND Coating provides superior anti-reflection performance, effectively reducing any flare and ghosting. Even when taking backlit portraits, the new lens delivers flawless, crystal clear images.

• Ideal for use in outdoor photography, the new 70-200mm telephoto zoom has moisture-resistant construction because special sealants that are dust-resistant and moisture-resistant are used at every joint and seam. The sealant material helps to prevent the intrusion of any dirt, dust or water droplets, compared to conventional Moisture-Resistant Construction.

• The front surface of the lens element is coated with a protective fluorine compound that is water- and oil-repellant. The lens surface is easier to wipe clean and less vulnerable to the damaging effects of dirt, dust, moisture and fingerprints.

• An electromagnetic diaphragm system, which has been a standard feature for Canon-mount lenses, is now available for in Nikon-mount lenses*5. More precise diaphragm and aperture control is possible because the diaphragm blades are driven and controlled by the motor through electronic pulse signals.*5 Available only with cameras compatible with the electromagnetic diaphragm (D3100, D3200, D3300, D3400, D5000, D5100, D5200, D5300, D5500, D5600, D7000, D7100, D7200, D300, D300s, D600, D610, D700, D750, D800, D800E, D810, D810A, D3x, D3s, D4, D4s, Df, D500, D5). (As of January; Tamron)

• A new textured grip and Arca-Swiss style tripod interface enhances both speed and utility. Because the tripod mount is made of lightweight magnesium, it is much easier to carry.

• The optional TAP-in Console provides a USB connection to a personal computer, enabling users to easily update the lens firmware as well as customize features, including fine adjustments to the AF and VC.

• For the SP series products in particular, Tamron has established rigorous design and quality standards. These standards apply to the optical design, mechanical design and the cosmetic appearance, as well as to such wide-ranging areas as the product’s robustness and improvements in the various individual functions. Tamron thoroughly reviews of all of the design and manufacturing processes in order to offer products to customers with even-higher levels of precision and quality.
  For the SP 70-200mm G2 (Model A025), the optical design was refreshed, mechanical parts were improved and a new exterior design was adopted. To maximize the optical performance intrinsic to this product, Tamron improved the accuracy of the component parts and increased the precision of the overall zooming mechanism.

• Improvements in the control circuit and AF algorithm of the previous Model A005 have enhanced both focusing speed and accuracy, which enables a moment to be captured without letting the photo opportunity slip away, and which makes the A030 a suitable lens for photographing fast-moving subjects.

• Improving Tamron’s unique VC (Vibration Compensation) functions has improved the responsiveness of the VC lens elements, and Model A030 achieves a higher image stabilization performance level of 4.0 stops according to the Camera & Imaging Products Association (CIPA) standard.

• The zoom ring and focus ring using linear-based grid patterns and the brand ring in tungsten silver create an external design with a high-grade feel.

• The front surface of the lens element is coated with a protective fluorine compound that is water- and oil-repellant. The lens surface is easier to wipe clean and is less vulnerable to the damaging effects of dirt, dust, moisture and fingerprints.

Specifications