New lenses from Tamron: 90mm f:2.8 Macro and 70~200mm f:2.8

September 13, 2012, Photokina

SP 90mm F/2.8 Di MACRO 1:1 VC USD (Model F004) for Canon, Nikon and Sony

Tamron announces the redesign of their legendary 90mm Macro lens, equipped with VC (Vibration Compensation)*1 and USD (Ultrasonic Silent Drive)*2 – SP 90mm F/2.8 Di MACRO 1:1 VC USD (Model F004)

Tamron Co., Ltd. (President and CEO: Morio Ono / Headquarters: Saitama City), a leading manufacturer of optical equipment, announced the development of a next generation 90mm Macro lens for full-size SLR cameras. The lens features completely redesigned optics, a proprietary VC (Vibration Compensation), and USD (Ultrasonic Silent Drive)

Specifications
Model F004
Focal length 90mm
Maximum aperture F/2.8
Angle of view(diagonal) 27°02′ (with full-size SLR cameras)

17°37′ (with APS-C sized sensor digital SLR cameras)

Lens construction 14 elements in 11 groups
Minimum focus distance 0.3m (11.8 in)
Maximum magnification ratio 1: 1
Working distance 139mm (5.5 in)
Filter size φ58mm
Length*1 114.5mm (4.5 in)*
Entire Length*2 122.9mm (4.8 in)*
Diameter φ76.4mm
Weight 550g (19.4 oz)*
No. of diaphragm blades 9 (rounded diaphragm)
Minimum aperture F/32
Standard accessories Lens hood
Compatible mounts Canon, Nikon, Sony
  • Specifications, appearance, functionality, etc. may be changed without prior notice.
  • *Length, entire length and weight values given are for the Nikon mount.
  • *1: Length is the distance between the mount face and the tip of the lens.
  • *2: Entire length is the distance between the tip of the lens and the tip of the protrusion.
  • This new lens will be sold alongside its predecessor, the SP AF90mm F/2.8 Di MACRO 1:1 (Model 272E).

Price: TBA.

September 13, 2012, Photokina

The most compact*1 full-size, high-speed telephoto zoom lens, delivering leading-edge image quality with Tamron’s proprietary VC (Vibration Compensation)*2 and USD (Ultrasonic Silent Drive)*3. – SP 70-200mm F/2.8 Di VC USD (Model A009)

September 13, 2012, Saitama, Japan – Tamron Co., Ltd. (President and CEO: Morio Ono / Headquarters: Saitama City), a leading manufacturer of optical equipment, announced the development of a full-size, high-speed telephoto zoom lens equipped with VC (Vibration Compensation)*2 image stabilization, and USD (Ultrasonic Silent Drive)*3 that achieves leading-edge image quality while boasting the most compact design in its class.

SP 70-200mm F/2.8 Di VC USD (Model A009) for Canon, Nikon and Sony
Specifications
Model A009
Focal length 70-200mm
Maximum aperture F/2.8
Angle of view(diagonal) 34°21’-12°21′ (with full-size SLR cameras)
22°33’-7°59′ (with APS-C sized sensor digital SLR cameras)
Lens construction 23 elements in 17 groups
Minimum focus distance 1.3m (51.2 in)
Maximum magnification ratio 1: 8 (at f=200mm: MFD 1.3m)
Filter size φ77mm
Length*1 188.3mm (7.4 in)*
Entire Length*2 196.7mm (7.7 in)*
Diameter φ85.8mm
Weight 1470g (51.9 oz)*(including detachable tripod mount)
No. of diaphragm blades 9 (rounded diaphragm)
Minimum aperture F/32
Standard accessories Flower-shaped lens hood
Compatible mounts Canon, Nikon, Sony
  • Specifications, appearance, functionality, etc. may be changed without prior notice.
  • *Length, entire length and weight values given are for the Nikon mount.
  • *1: Length is the distance between the mount face and the tip of the lens.
  • *2: Entire length is the distance between the tip of the lens and the tip of the protrusion.

Price: TBA.

VC (Vibration Compensation)

VC (Vibration Compensation) is Tamron’s proprietary image stabilization system. 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. And as the VC lens may be moved in parallel using only the motorized control, the mechanical structure has been simplified, enabling the creation of a more compact lens.

New VC System (moving coil method)
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.

The Ultrasonic Motor

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.

 

Darrell Larose
Ottawa, Canada

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