Sigma patent spills out the specs of the new 28mm f/1.2 L-mount lens
This new Sigma patent describes the optical design and physical dimensions of the new 28mm f/1.2 lens for mirrorless Full Frame system cameras. I am not sure but this might be the fastest 28mm FF lens ever made!
Lens specs:
Focal length: 28.90
F-Number : 1.25
Half Angle : 76.94
Image height: 21.63
Lens length: 157.00
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