Here is another in a long line of diffractive optics patents we’ve seen from Canon over the last couple of years. Since the Canon EXPO Read more...
canonrumors.com2018-12-29 18:33
Here is another in a long line of diffractive optics patents we’ve seen from Canon over the last couple of years. Since the Canon EXPO Read more...
canonrumors.com
It looks like Tamron may be entering the world of fast supertelephoto lenses. Three different optical formulas have appeared in the same patent application from Tamron. Embodiment 1: 300mm F/2.8 Focal length: 304.799 mm F No.: 2.8 Read more... canonrumors.com »
2018-01-05 20:44