Tamron Announces AF28-300mm VC Lens Equipped With Built-In AF Motor For Nikon SLR Cameras
May 15, 2008, Commack, NY - Tamron USA, Inc. announced release of the AF28-300mm F/3.5-6.3 XR Di VC LD Aspherical (IF) MACRO, a high power zoom lens compatible with full-size SLR cameras, now features a built-in AF motor for use with Nikon DSLRs (Model A20NII) and featuring Tamron's proprietary VC (Vibration Compensation) mechanism.
Since its introduction in October 2007, Tamron's AF28-300mm VC zoom lens has been highly evaluated by many photographers the world over as a compact and high power zoom lens providing a 4-stop shutter speed advantage when VC is turned on. The lens covers an angle of view equivalent to that of a 465mm ultra telephoto lens when mounted on a digital SLR camera equipped with an APS-C size image sensor. The ultra telephoto range is one where Tamron's proprietary VC (Vibration Compensation) mechanism exhibits its compensation performance to the maximum extent. The lens enables the user to enjoy ultra telephotography with amazingly stabilized viewfinder images. Covering an angle of view equivalent to 43mm at its wideangle end, the lens lets the user respond to a wider variety of scenes than do tele-zoom lenses in the 70-300mm class.
The AF28-300mm F/3.5-6.3 XR Di VC (IF) MACRO is a compact and high power zoom lens that can be used as a standard zoom. It allows not only the users of conventional film SLR cameras and full frame DSLRs, but also owners of digital SLR cameras equipped with APS-C sized image sensors to comfortably enjoy SLR photography with 465mm-equivalent ultra telephoto without hand shake.
*35mm-format equivalent. When used on digital SLR cameras equipped with APS-C sized image sensors. When mounted on a digital SLR camera equipped with an APS-C sized image sensor. 35mm format equivalent (Tamron's conversion value is 1.55x)
VC (Vibration Compensation) Mechanism Reduces Hand-shake
The proprietary VC (Vibration Compensation) mechanism developed by Tamron features a triaxial configuration using three pairs of driving coils and slide balls around the compensator group of the lens' optical system. Since the compensator lenses are supported with rolling friction of the balls, the response performance is enhanced and the construction is simple, which results in the compactness of the lens. The lens incorporates a highly accurate gyro sensor for detecting hand-shake, which, combined with a 32-bit RISC CPU, offers comfortable anti-vibration effects. The result is a lens that offers excellent vibration compensation-4 extra stops can be gained when VC is turned on.
Outstanding Design Realizing High Zoom Power, VC Mechanism and Compactness
The AF28-300mm F/3.5-6.5 XR Di VC integrates optical technologies that Tamron has accumulated as the pioneer and leader of high power zoom lenses in order to realize the desired compactness even while incorporating the VC mechanism. The optical system uses a number of lens elements made from special optical glass materials including XR (high refraction index) glass elements, GM (glass-molded) elements, hybrid aspherical elements, LD (low dispersion) glass elements to compensate for on-axis and lateral chromatic aberrations and AD (anomalous dispersion) glass element. The lens offers high contrast, high resolution performance and flatness of the image field as a one-does-it-all zoom lens designed to match the characteristics of DSLR cameras.
Revolutionary 19.3" MFD Throughout Zoom Range Provides 1:3 Macro
The AF28-300mm F/3.5-6.3 XR Di VC MACRO boasts an MFD (minimum focusing distance) of 19.3" (0.49m) over the entire zoom range, a top-class close focusing capability among high power zoom lenses for full-size format SLR cameras, which provides the remarkable maximum macro magnification ratio of 1:3 at the 300mm telephoto end.