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Firmware Update

Sigma 12mm M4/3 Lens Patent

Sigma patent 12mm F1.4 M4/3 lens patent surfaced over the web. From its focal length and aperture its look like they are planning to announce a new ART series for M4/3 mount. Take a look at the patent details below.

Patent details (Translated)
Subject distance: INF 40 times 200 mm
Focal length: 12.35 12.35 12.32
F number (F number): 1.47 1.48 1.50
full angle of view 2ω (Angle of view): 88.12 88.02 87.77
image height Y (image height): 10.82 10.82 10.82
total lens length (lens length): 86.00 86.00 86.00 eXAMPLE 1 embodiment 1] [ Aberrations at INF] [ Aberration chart at close range Aberrations at 200 mm]

We have also published Sigma Patent – 8mm F1.8 Fisheye For MFT System.

However, earlier Sigma have denied the rumors that Sigma is entering in M4/3 lens mount. But, its look like they have changed their mind.

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