Sigma’s patent for a 11-22mm f/4.5-5.6 DG HSM FLD Art lens

• 9 years ago
• Categories: Sigma
• Tags: Patents

Sigma filed a patent in Japan for a 11-22mm f/4.5-5.6 DG HSM FLD Art full frame lens. This will be a nice addition to the current Sigma Art product line. Here are the details:

• Patent No. 2015-203734
• Published: 2015.11.16
• Filing date: 2014.4.11
• Zoom ratio: 1.88
• Focal length: 11.33 15.33 21.30
• F-number: 4.50 5.00 5.86
• Total angle of view 2ω: 126.85 108.80 87.93
• Image height: 21.63 21.63 21.63
• Overall length of the lens: 163.42 156.24 156.59

Via Egami