Tamron has filed a patent for a new hort-telephoto prime lens in Japan. The new patent describes the Tamron FE 85mm f/1.8 VC lens designed for Sony mirrorless cameras with full-frame image sensors.
The lens in the patent application features an 85mm focal length along with a maximum aperture of f/1.8 and built-in image stabilization technology.
On the other hand the internal design of the Tamron 85mm f/1.8 VC lens patent is identical to the one of the Batis 1.8/85 lens. That’s why this lens could also be the recently-announced Zeiss Batis Sonnar T* 85mm f/1.8.
Tamron FE 85mm f/1.8 VC Lens Patent
This would be good news for the current Sony A7-series FE-mount users. As Tamron produce such good lenses with an affordable price. See the image and patent details below.
Explanation and self-interpretation of the patent literature
- Patent Publication No. 2015-96915
- Published 2015.5.21
- Filing date 2013.11.15
- Example 1
- Focal length f = 82.87-82.02-77.72mm
- Fno. 1.85-1.88-2.01
- Full field angle 2ω = 28.59-27.41-23.18 °
- FB 18.04mm
- Lens configuration 8 groups 11 sheets
- LD 1
- Tamron patent
- Of positive and negative negative 3-group configuration
- Inner focus (the second group)
- Anti-vibration (Group 3)