Egami has discovered a new patent filed by Tamron. The new patent describes the Tamron 30mm f/2.8 VC macro lens designed for APS-C based mirrorless camera.
The patent application seems to be the design that reduce the weight of the focus group and the lens construction features 9 elements in 8 groups. The new 30mm f/2.8 VC lens patent also shows that the lens will have VC, vibrate compensation system. See patent details below.
Tamron also filed patents for 400mm f/6.7 VC reflex lens designed for 1″ sensor and 670mm f/6.7 reflex lens patent designed for APS-C sensor cameras.
Tamron Patent for 30mm f/2.8 VC Macro Lens
Description and self-interpretation of the patent literature
- Patent Publication No. 2014-89351
- Publication date 2014.5.15
- Filing date 2012.10.30
- Example 1
- Focal length f = 29.08mm
- Fno. 2.94
- Image height Y = 14.2
- β = -1.0
- Inner focus
- Vibration control