Canon releases design drawings of RF16-34mm F4 and 12-24mm F4

   According to overseas information, Canon recently announced the specifications of two new RF wide-angle lenses, namely RF16-34mmF4 and 12-24mmF4. From the specifications, we can guess that these two lenses or Will take the civilian route. The detailed parameters are as follows:

  16-34mmF4:

  Zoom ratio: 2 times

   Focal length: 16.4923.8433.97mm

   aperture: 4.124 .124.12

  Image field height: 21.64mm

  Lens length: 138.64133.28136.75mm

  Back focal length: 38.4948.5862.18mm

Canon releases design drawings of RF16-34mm F4 and 12-24mm F4

  12-24mmF4:

  Zoom ratio: 2x

   Focal length: 12.3316.8623.40mm

   Aperture: 4.124.124.12

  Image field height: 21.64mm

  Lens length: 155.71148.83150.16mm

p>

  Back focal length: 38.4547.4160.45mm

Canon releases design drawings of RF16-34mm F4 and 12-24mm F4

Author:SINA,If you need to reprint,please indicate the source:http://www.todaycamera.com/camera-reviews/canon-releases-design-drawings-of-rf16-34mm-f4-and-12-24mm-f4