Canon 24-70mm F2.8 (Super35mm) patent
Canon has filed a patent for a new CN-E 24-70mm f / 2.8 LS lens.
Read more
patent
Canon EF 24-300mm f/3.5-5.6 Patent
Canon has registered a new EF 24-300mm f/3.5-5.6 lens patent.
Read more
Patent of Sigma 11-22Mm F4.5-5.6
Sigma corresponds to the full-size SLR 11-22mm F4.5-5.6 of a patent is pending.
Read more