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It could be because Viltrox are the only one that have acquiesced and gone public about it or that they were first on the list and the others will follow. If it is aimed solely at Viltrox then it could be that Canon consider that actual wrongdoing has happened in terms of the acquisition of the protocol and/or lens design. Its a tough call because on the one hand the temptation to buy them before they disappear (BH already show the Viltrox as discontinued) but on the other hand they might well be rendered useless by a future firmware update. I suppose it comes down to whether you have a Canon camera with a settled/finished firmware version so you don't have to upgrade to a future firmware that potentially could contain a countermeasure.

Only the Komodo is RF, the others have swappable mounts. For instance one of the best mounts for RED is EF, so completely incompatible with RF or mirrorless lenses. That's the Motion Mount with electronic variable ND built in. So what use is RF for RED users who want to use that? You are far better off with either EF or PL lenses for the vast majority of RED's bodies, especially the proper high-end stuff. Komodo is entry level.

Shit! It's Mr. Creosote!!