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12mm F1.4 for m4/3 from SIGMA [Pantent]

Sigma filed a patent of 12mm F1.4 for m4/3.
Sigma is seems to be keeping on the work for m4/3.

P.S.
FT san suggests that the embodiment 1 is same to "LEICA DG SUMMILUX 12mm / F1.4 ASPH" of Panasonic.
I think FT san is true.

【公開番号】特開2017-167327(P2017-167327A) click here
【公開日】平成29年9月21日(2017.9.21)
【発明の名称】インナーフォーカス光学系

Specification and lens arrangement of embodiment 1
Focal length: 11.98
F No.: 1.45
2ω : 89.28
Y : 10.82
Lens length: 89.00
JPA_429167327_000004.gif

JPA_429167327_000005.gif
Aberrations at INF

nice!(2)  コメント(4) 
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