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8.0& &&&&&&DETAILS&OF&THE&NEW&CANON&RF&MOUNT&
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Figure&7&&&&&&&&&&Showing$new$RF$mount$(on$the$right)$side$by$side$with$the$existing$EF$mount$(on$the$left)$
RF!mount!is !a!new!mount!that! m aintains!the!advantages!of!a! fu lly!electronic!large -diameter!EF!m ounts!
while! additionally!offering!an!optimal!diameter,!flange!back,!and!back!focus!to!more!fully!capitalize!on!
optical!characteristics!of!a!full-frame!mirrorles s!syste m s .!
Like! the! EF! mo unt,! a! 3-tab! bayonet! mount! is! used! in! the! RF! mount.! However,! to! prevent! incorrect!
attachment,!bayonet!tabs!are!in!different! positions!than!they!are! on !th e!EF! mo unts.!For!this!reason,!EF!
lenses!cann o t!be!attac he d !direct ly.!In!use,!the!new! RF!mount!also!resembles!existing!EF!mounts.!Lenses!
are!rotated!to!an! angle! of! 60°!for! attachment! or!rem oval,!and! the! lens!lock! pin! is!in! the! same! position!as!
on! an! EF! mount! (at! th e! 3! o’clock! position,! as! viewed! from ! the! front! of! the! camera),! with! the! same!
amount!of!protrusion!and!movement.!!
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