https://www.canonwatch.com/canon-patent-application-wide-angle-zoom...
Canon patent application: wide-angle zoom lens for full-frame mirrorless camera
Canon patent application 2018-77320A describes a 16-28mm f/2.8, wide-angle zoon lens for a full frame mirrorless camera.
Zoom ratio: 1.67
Focal length: 16.48 ? 27.44mm
F number: 2.88
Half angle: 52.70 ? 38.25
Image height: 21.64mm
Back focus: 12.33 ? 10.00mm
¿ä¾à
ÀÌ°ÍÀºÄ³³íÇ®ÇÁ¹Ì·¯¸®½º¹Ùµð¿ë 16-28mm f/2.8·»ÁîÀÇƯÇãÀÌ´Ù(ij³íÀÌÃÖ±Ù¿¡Ãâ¿øÇÑƯÇã 2018-77320AÀ̱װÍÀ»¼³¸íÇÏ°íÀÖ´Ù)
À½..ij³íÇ®ÇÁ¹Ì·¯¸®½º¹Ùµð¿ë·»Áî´Â 16-28mm f/2.8·»ÁîºÎÅͳª¿ÃµíÇϳ׿ä..
¡Ú ½Å¶ó¸é¸Å¿î¸À´ÔÀÇ ÆËÄÚ ¾Ù¹ü ¡Ú
https://photo.popco.net/58191