Canon EOS REBEL XS Instruction Manual page 60

Setting Custom Functions*
Custom Functions
C.Fn I: Exposure
I 1 Exposure level increments p,154
I 2 Fash sync, speed nAy mode
C.Fn I1: image
3 Long exposure noise reduction
p.155
4 High ISO speed noise reduction
5 Auto Lighting Optimizer p.156
C.Fn II1: Auto focuslDdve
6 AF-assist beam firing
7 AF dur ng Lve Vew shoot ng p,157
C.Fn iV: OperationlOthers
.... ShutterlAE lock button
p,158
SET button when shooting
11 LCD display when power ON
p,159
12 Add odginal decision data
The Custom Functions whose numbers are Shaded do not function during
Live View sh0oting. (settings are disabled. ) UfC,Fm771t2 has been se t and
you want to use AE !ock, set C,En:9-!.
153