- Focal length: 24mm Exposure: F/4 1/60 sec ISO100
Photographic artists have been waiting for a full-featured, constant-aperture zoom lens. The wait is over. The A007 is a high-quality, highly functional, high-speed standard zoom lens covering the 24-70mm focal range*1. It includes both Tamron's proprietary VC (Vibration Compensation) image stabilization to reduce shake and its USD (Ultrasonic Silent Drive) motor, enabling speedy, silent autofocusing. This SP (Super Performance) series lens makes full use of specialized glass elements in its lens layout, designed with top priority on image quality, including three LD elements and two XR (Extra Refractive Index) glasses. Tamron has minimized all types of chromatic aberration in the A007, making it a lens at the top of its class whether you use it on a digital APS-C, full-frame, or 35mm SLR camera. The A007's F/2.8 aperture enables a balance between brilliant resolution and beautiful soft blur effects. This ideal lens makes full use of Tamron's rounded diaphragm*2 and the uncontrived, artistic blur that it provides. It is also Tamron's first lens to feature our new moisture-resistant construction. Portraits. Landscapes. Studio shoots. This is the lens for them all. Capture the finest details of your images in precisely the way you have always wanted to. Extend your art to the limits of your inspiration with the A007.
*1 With SLR cameras corresponding to APS-C, the angle of view based on 35mm equivalent focal length will range from 37mm to109mm.
*2 This rounded diaphragm retains a nearly circular shape even when taken two stops down from its fully open state.
- Focal length: 70mm Exposure: F/5.6 1/15 sec ISO400
This F/2.8 high-speed lens is equipped with a VC (Vibration Compensation) system that provides a stable image that seems virtually pasted onto the viewfinder. Even under low-light conditions, handheld shooting without concern for camera shake is made possible. Tamron's VC is a three-coil system, whereby three driving coils activate the shake-compensating VC lens group electromagnetically via three ceramic balls. The VC lens elements are held in place only by contact with the ceramic balls, achieving smooth movement with little friction. This provides a stable viewfinder image with excellent tracking performance. Tamron's original VC image stabilization mechanism utilized a moving magnet system whereby a heavy magnet was positioned near the moving VC lens element. In the new VC unit the positions of the magnet and the coil are reversed, because of this the VC optical lens element is attached to the coil. The new VC mechanism employs a moving coil mechanism with a lightweight coil, and the lighter coil reduces the load on the drive system. Thus, the lighter, more compact new VC unit contributes to the lens's overall light weight and compact size.
* VC is also available in the 17-50mm[B005], 18-200mm[B011], 18-270mm[B008], 28-300mm[A20], and 70-300mm[A005] models.
*1 For high-speed standard zoom lens compatible with full frame size SLR cameras. Current as of February 2012. (Source: Tamron).
Focal length: 70mm Exposure: F/22 1/100 sec
With VC, the photographer can shoot at a shutter speed up to four stops slower.
- Focal length: 70mm Exposure: F/2.8
Aperture fully opened 1/160 sec ISO100
All Tamron lenses have high autofocus precision and are designed to capture subjects easily in almost any situation, yet sometimes a photographer wants to fine tune and make adjustments on the fly. The integration of full time manual focus offers just that: instead of fumbling with switches, photographers can switch from autofocus to manual focus by simply adjusting the focus ring. This feature helps the lens produce impressive results even in telephoto situations where the depth of field is narrow.
In the ultrasonic motor, a piezoelectric element arranged in a ring formation generates ultrasonic vibrations in a metallic ring stator, and the vibration energy is used to rotate a metallic ring rotor that is attached to the stator. The rotation energy is in turn transferred from the metallic ring rotor to operate the focus lens. The result is a lens featuring low noise and high-torque, highly responsive, speedy focusing.
Moisture-resistant construction is added to help keep water from penetrating the lens. It's ideal for outdoor photography.