Tamron Japan has filed a new lens patent for Tamron SP 115mm f/1.4 VC lens. This lens is similar to recently announced AF-S NIKKOR 105mm f/1.4E ED lens.
Patent Publication No. 2016-151661
Published 2016.8.22
Filing date 2015.2.17
Example
f = 113.000
Fno = 1.456
ω = 10.632
Patent of Tamron
Positive and negative positive
Inner focus (the second group)
Vibration proof group (one of the group)
via: EG
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