Sigma filed a patent for a 24-70mm f/2.8 DG OS HSM Art lens
Sigma filed a patent in Japan for a 24-70mm f/2.8 DG OS HSM Art lens. In the past there have been rumors about a new Sigma 24-70mm f/2 OS HSM lens, but we have not seen an official announcement yet.
Here are the patent details:
- Patent: 2016-38502
- Published on: March 22nd, 2016
- Filed on: August 8th, 2014
- Zoom ratio: 2.74
- 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
- Image height: 21.63 21.63 21.63
- Total lens length: 150.73 167.12 178.30
Via Egami