Latest Canon Patents
Patent – EF 135 f/2.8 & 180 f/3.5 with Apodization Filter
New lens patents A new patent showing two lenses, the 135 f/2.8…
Patents – EF 600 f/5.6 DO & 800 f/5.6 DO
More diffractive optics Canon seems to still invest significant money into developing…
Patent – Canon EF 24-70 f/2.8L IS
You want IS? A patent for an EF 24-70 f/2.8L IS has…
Patent: 600 f/4 DO IS & 400 f/2.8 DO IS
Patent Time! More diffractive optic patents from Canon. This time, another 600…
Patent: New Diffractive Optic Patents
More DO Lenses? A few patents in regards to diffractive optics have…
Patent: Canon EF 2.8x Teleconverter
Patent Time A patent showing a new teleconverter has made an appearance.…
