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7.0&& &&KEY&TO&NEW&LENS&GENERATION&—&NEW&LENS&MOUNT&

Central!to!the!effective!implementation!of!the!strategy!to!extend!the!p ote ntial!o f!the !EO S!sy stem !fo r!th e!

future! is! a! new ! lens! m ount.! ! Canon!has! developed! a! mount! that! holds!high!promise! of! sustaining!far!

more!flexible!lens!designs!over!the!long!term!—!th e!ne w !RF!mount.!

! !!!!!!!!!!!!!!!!!!!!!!!!!!!!! !

Figure&6& The$new$lens$mount$is$designed$to$empower$ new$ flexibilities$in$le ns $ design$ and $ a$new$

generation$of$mirrorless$cameras$

Considerations&that&guided&the&new&lens&mount&design:&

1. Totally!new!mount!—!but!one!that!retains!the!large!54!mm!in n er !diameter!of!the!EF!m ount!

2. Accommodate!current!Canon!EOS!image!sensor!sizes!up!to!Full!Frame !36 mm!x!24m m!!

3. Leverage!the!shorter!20mm! flange! back! distance!of!the!Mirrorless!(ML)!system!to!su ppo rt!new!

optical!designs!

4. Significant!elevation!of!the!electronic!communication!in!the!new !interchangeable!lens-camera!

system!—!!increasing!!th e!n um b er!o f!con tact!p ins!from !e ight!(curre nt!E F)!to !twe lve!!

5. Accommodation!of!existing!(and!new)!EF!lenses!—!with!virtually!no!performance!compromises!