Tamron is developing a new all-in-one zoom lens: the 28-300mm f/3.5-6.3 DI VC PZDTamron has just released information about a new lens they have in development, the 28-300mm f/3.5-6.3 DI VC PZD. This model is, "an advanced new All-In-One zoom lens", which they've designed for use with full-frame DSLRs. See the press release below for details.
Tamron ANNOUNCES developMENT OF an advanced new all-in-one™ wideangle to telephoto zoom lens for full-frame DSLRs
February 6, 2014, Saitama, Japan. - Tamron Co., Ltd. (President & CEO: Morio Ono), a leading manufacturer of precision optics, has announced the development of 28-300mm F/3.5-6.3 Di VC PZD (Model A010), an advanced new All-In-One™ zoom lens for full-frame DSLR cameras. The lens sample will be on display at the Tamron booth at the CP+ 2014, which will be held from February 13 to 16 in Yokohama, Japan.
Since the launch in 1992 of the 28-200mm (Model 71D) high-power zoom lens - which featured a revolutionary compact, lightweight design - Tamron has been continually expanding its portfolio of world class optics to benefit consumers.
Having revolutionized the optical design of the previous 28-300mm (Model A20), Tamron is developing a powerful new, high-power zoom lens for full-frame DSLR cameras that enhances image quality and incorporates the PZD (Piezo Drive)-a standing-wave ultrasonic motor system optimized for swift, quiet AF-and the acclaimed VC (Vibration Compensation) mechanism in an amazingly compact configuration. Featuring a new, sophisticated external finish, this lens complements the performance and style of full-frame DSLRs, while delivering the practical advantages of an All-In-One™ zoom lens.
Detailed Feature Explanation
PZD (Piezo Drive)Ultrasonic motors are classified into two types depending on how the energy used to move the drive is generated: traveling-wave motors and standing-wave motors. Traveling-wave motors include the ring-type ultrasonic motor that has been adopted for the 70-300mm F/4-5.6 VC USD (Model A005) and other lenses. The PZD (Piezo Drive) adopted for the 18-270mm F/3.5-6.3 VC PZD (Model B008) and the new Model B016 is classified as a standing-wave ultrasonic motor system. The standing-wave ultrasonic motor system utilizes ultrasonic-frequency voltage to extend and turn the piezoelectric (piezoceramic) element, which causes the entire element to vibrate in an "S" pattern known as a standing-wave motion. The vibration of the element generates an elliptic motion at the metal tip, which is attached to the tip of the piezoelectric element in contact with the rotor. Friction of the metal tip with the rotor caused by this elliptic motion turns the rotor to focus the lens. Innovations to reduce the number of parts and simplify operation also contributed to the lens's reduced size and weight.
VC (Vibration Compensation)
Tamron's proprietary VC (Vibration Compensation) system uses a three-coil system. This system employs three coils that move the VC lens elements electromagnetically via three ceramic ball bearings. The VC lens elements are held in place only by contact with the ceramic ball bearings, thus achieving smooth movement with little friction. This provides a stable viewfinder image with enhanced image stabilization and excellent tracking performance.
 PZD (Piezo Drive) is a standing-wave type ultrasonic motor system developed by Tamron. It delivers outstanding speed and quiet operation in the AF mode. It also provides greater flexibility in design compared with ring-type ultrasonic motors, thus contributing to reduced lens size.
 VC (Vibration Compensation) is Tamron's proprietary tri-axial image stabilization mechanism.
This circular diaphragm retains a nearly circular shape even at two stops down from its maximum aperture.
Length and weight are based on figures for the Nikon-mount lens. Specifications, appearance, functionality, etc. may be changed without prior notice.
Length is the distance between the front tip of the lens and the mount face.
 The Sony mount model does not include VC, since the bodies of Sony DSLR cameras include built-in image stabilization functionality. The name of the Sony mount model is "28-300mm F/3.5-6.3 Di PZD" without the VC designation
"New Eyes for Industry" is Tamron's philosophy. This creed is consistent with the company's position as a comprehensive manufacturer of a wide range of original optical products, from interchangeable lenses for SLR cameras to various optical devices for both the general consumer and OEM. Tamron makes optical products that contribute to a range of different industries and will continue to devote its rich creativity and leading-edge technical prowess to various industrial fields. Furthermore, Tamron is fully aware of its responsibility to the environment and aspires to help preserve the natural environment in all of its business activities. Among its many optical and mechanical innovations since the founding of the company in 1950, Tamron's development of mass-produced hybrid Aspherical elements paved the way for today's compact high power All-In-One™ lenses when, in 1992, this technology was incorporated into the ground-breaking 28-200mm. Tamron continues to lead in this category of lenses with the 18-270mm Di II VC PZD - the world's smallest and lightest 15X All-In-One™ zoom lens featuring Tamron's proprietary VC (Vibration Compensation) system for blur-free hand-held shooting of photos in low light and at telephoto settings and PZD (Piezo Drive) autofocus system for fast and quiet autofocus operation. Tamron's recent SP (Super performance) lens introductions have received accolades and high praise from leading photographic magazines and websites for their outstanding best-in-class performance. Tamron has garnered international acclaim for its extensive line-up of professional and consumer lenses.
Optical Product Line-up:
Interchangeable lenses for SLR cameras, digital camera lenses, video camera lenses, lenses for automotive applications, CCTV and IP lenses, lenses for long wavelength infrared cameras, ultra-precision optical components and more.