Owner's Manual

Table Of Contents
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Figure&24!!!!!!!!Show ing$the$fourteen$groups$m ade$up$of$a$total$of$eighteen$lens$elemen ts$in$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!distortion.!!The!UD!lens!element!show n!in!dark!green!
helps!minimize!both!lateral!and!longitudinal! chromatic!aberrations.!!The!Compensation!Optics!group!in!
the!center!is!the!lens!element!group!which!performs!the!image!stabilization!correction.!
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Figure&25! Showing$the$Zoom,$Focusing,$and$Control$rings$and$the$various$mode$switches$
23!