The latest patents from Sigma, Canon and Panasonic
→ Sigma filed a patent for a 17-55mm f/2.8 OS lens.
→ Canon filed a patent for a 11-24mm f/3.5-4.5 lens.
→ Canon got a new patent for a Canon 70-300mm f/4-5.6 lens.
→ Canon filed another half-mirror/translucent mirror patent.
→ Panasonic filed a patent for a pop-up antenna type microphone.