It seems to be a never-ending parade of optical formula patents from Tamron, this time it’s a 115mm f/1.4 VC. This is another fast and unique lens concept from Tamron.
Patent Publication No. 2016-151661 (Google Translated)
- Published 2016.8.22
- Filing date 2015.2.17
- f = 113.000
- Fno = 1.456
- ω = 10.632
- Tamron patent
- Positive and negative positive
- Inner focus (the second group)
- Vibration proof group (one of the group)
Announcements from Tamron ahead of Photokina should be coming any day now. I suspect most will wait until after the EOS 5D Mark IV announcement and chatter has cooled down.