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A patent for serial communication for an ILC mount that is neither EF or EF-M.
Canon News tried their best to translate a rather awkward patent.
…… is seemingly suggesting that this mount could handle multiple lenses of both a new mount and old mount format. Conjecturing by looking at the mount, looking at the size of the sensor against the mount itself, it’s appearing as if canon is looking at mounting EF-M and EF Full frame mirrorless using possibly a hybrid mount?
From Japan Patent Application 2018-084713:
Conventionally, the serial communication (synchronous serial communication) of a clock synchronization system has been adopted as a communication method of a camera and an interchangeable lens. The following technical contents are disclosed in the Patent document 1. First, synchronous serial communication is performed with the first communication speed with which an interchangeable lens old type can also communicate. When the interchangeable lens with which it is equipped is distinguished from a new lens by the communication content, it changes to the synchronous serial communication in a more nearly high-speed second communication speed.
We’ve been told that the mount solution for a full frame mirrorless camera would be interesting, but this is the first time we can confirm that Canon is working on a new mount. Though there’s no way of knowing if this is indeed for the upcoming full frame mirrorless camera body.