CANON explains the reason why a short-back-focus mount needs a large diameter [Technology]
DC WATCH introduces the presentation of CANON about the advantage of RF mount with short flange back and large diameter.
Google translate
https://translate.google.co.jp/translate?hl=ja&sl=auto&tl=en&u=https%3A%2F%2Fdc.watch.impress.co.jp%2Fdocs%2Fnews%2F1158578.html
Google translate
https://translate.google.co.jp/translate?hl=ja&sl=auto&tl=en&u=https%3A%2F%2Fdc.watch.impress.co.jp%2Fdocs%2Fnews%2F1158578.html
