New Patent: Sigma 28-200mm f/3.4-5.6 DG Lens

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Sigma has filed a new patent for Sigma 28-200mm f/3.4-5.6 DG Lens for Sony E-mount full frame mirrorless cameras. Take a look at the patent details below:

【Publication number】 JP 2020-204684(P2020-204684A)
【Release date】 December 24, 2020
【Patent application title】 Imaging optical system

Embdiment 1
Zoom ratio: 7.14
Focal length: 27.99 71.70 199.93 mm
F number: 3.37 4.67 5.60
Angle of view: 78.26 32.06 11.77
Image height: 21.63 21.63 21.63 mm
Lens length: 144.99 161.09 220.98 mm

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Via: Hi-lows-note