Tamron has filed a new patent for 70-200mm f/4 VC lens, which will be designed for full frame DSLR cameras. The US price of this Tamron 70-200mm f/4 VC lens is expected to be cheaper than Canon EF 70-200mm f/4L IS USM ($1,099) and Nikon AF-S NIKKOR 70-200mm f/4G ED VR ($1,396).
Take a look at the patent details below translated by Google.
Patent Publication No. 2016-126278
- Published 2016.7.11
- Filing date 2015.1.8
- Focal length 71.8092 109.9915 205.9615
- F-number 4.0989 4.1033 4.1023
- Half angle of 16.7567 10.8972 5.8621
- Positive and negative positive positive and negative 5-group zoom
- Inner zoom
- Inner focus
- Vibration control
Read more: Tamron Patents