Kodak DCS500 - Manual (Page 155)

8-36
When using One-shot AF together with Evaluative metering, the exposure reading is
automatically locked when you press the Shutter button halfway.
When using One-shot AF together with Fine Spot or Partial metering, the exposure setting
is locked only during Continuous Shooting mode.
If you use AE lock to register a
shadow reading of your subject and
then change the scene composition
to read a highlight area (or vice
versa), you can then use exposure
compensation to adjust the exposure
level based on the brightness range
of the scene. (Refer to the section on
“Exposure Compensation” later in
this chapter.
(page 6-6)
This custom function lets you lock
the exposure with the Shutter button
instead of the AE Lock button (✳).
Pressing the AE Lock button
activates autofocusing.
Custom Function F-4