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!!!!!!!!!!!!!!! !
Figure&24!!!!!!!!Showing$the$fourteen$groups$made$up$of$a$total$of$eighteen$lens$elements$in$the$RF24-
105mm$F4$L$IS$USM$lens$
Strategic!disposition!of!three!aspheric!lens!elements! (shown!in!light!green!in! Figure!24!helps!correct!for!
astigmatism,!spherical!aberration,! and!geometric! d istortion.!!The!U D!lens! element!shown!in!dark!green!
helps!minimize!both!lateral!and!longitudinal!chromatic!aberrations.! !The! Com pensation!Optics!group!in!
the!center!is!the!lens!element!group!which!performs!the!image !stab ilization!correction.!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !
Figure&25! Showing$the$Zoom,$Focusing,$and$Control$rings$and$the$various$mode$switches$
23!
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