En ningún momento he hablado de diseños clásicos simétricos ni de que no sea necesario un mínimo de retrofoco, ni de que no vaya a necesitar corrección digital (casi con toda seguridad la usara de forma generosa viendo lo visto con el RF14-35).
Pero lo de que la distancia de registro corta hace posible que un gran angular de 16 mm sea tan pequeño no lo digo yo, lo dice Canon. Y ahí lo dejo.
Conventionally, a 16mm ultra-wide-angle prime lens would be bigger and heavier than a 50mm prime lens in the same class. However, the RF16mm f/2.8 STM is around the same size and weight as the RF50mm f/1.8 STM.
The smaller, lighter body size was possible because of the short back focus distance and large diameter of the RF mount.https://snapshot.canon-asia.com/arti...gle-prime-timeThe large mount diameter and short back focus distance of the RF mount made it possible to place a large lens element close to the image sensor. This not only improves image quality at the image edges, but also makes the compact size of the RF16mm f/2.8 STM possible.
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