A new Sigma ART 24-70mm F2.8 lens patent surfaced over the web, The lens will arrive for Fullframe sensor based DSLRs. We may see some big announcements from Sigma on Photokina 2016 as we have told you earlier.
Patent Details Below
Patent Publication No. 2016-38502
Published 2016.3.22
Filing date 2014.8.8
Example
Zoom ratio 2.74
Wide-angle intermediate telephoto
Focal length 24.85 50.00 68.00
F-number 2.92 2.92 2.93
Full angle of view 2ω 83.71 45.71 34.33
The image height Y 21.63 21.63 21.63
The total lens length 150.73 167.12 178.30
source – bit.ly/22Gpbuh
What we need are more Art lenses for APS-C and 4/3 cameras!