Tamron 70-200mm f/2.8 lens patent
Tamron filed a patent in Japan for a new 70-200mm f/2.8 lens that will probably be an update of their current version. Tokina recently announced a new AT-X 70-200mm f/4 PRO IF FX lens and this is probably Tamron's response.
The details:
- Patent applications: 201258619, 201258620
- Patent release date: March 22, 2012
- Patent filling date: September 10, 2010
- Focal length: 71.5336 - 194.0928mm
- Aperture: 2.9
- Angle of view: 12.48 - 34.66°
- Magnification ratio: 2.713
- Lens design: 18 elements in 13 group
- 3 aspherical elements
- 3 ED elements
- Internal Focus
- Vibration Compensation
- Compact, lightweight design
