Sigma has just filed a new lens patent for telephoto zoom lens: Sigma 70-200mm f/4 DG DN OS Sports lens for L-mount full frame mirrorless cameras.
Embodiment 3
Zoom ratio: 2.68
Focal length: 72.50 118.13 193.95 mm
F number: 4.00 3.99 4.00
Angle of view: 33.22 20.36 12.38
Image height: 21.63 21.63 21.63 mm
Lens length: 200.60 200.60 200.60 mm
Back in February, Sigma CEO is also confirmed that Sigma 70-200mm f/2.8 DG DN OS Sports lens for L-mount coming. Stay tuned for more info.
via: HLN