Canon EOC-1DX Instruction Manual page 634

Using the Auto Lighting Optimizer
If the shooting result is dark or the contrast is low, you can use the Auto
Lighting Optimizer function to auto-correct the brightness and contrast,
and obtain a more pleasant image.
You can also change the settings of the image shot with the camera's
Auto Lighting Optimizer function.
This function is compatible only with RAW images shot with EOS-1D X,
EOS-1D Mark IV, EOS 5D Mark III, EOS 5D Mark II, EOS 7D, EOS 60 D,
EOS 50D, EOS REBEL T4i/650D, EOS REBEL T3i/600D, EOS REBEL
T2i/550D, EOS REBEL T1i/500D and EOS REBEL T3/1100D.
* ALO stands for Auto Lighting Optimizer.
1
Select the [NR/ALO] tab sheet from the tool palette in
the edit window or edit image window.
2 Checkmark the checkbox.
For images shot with the camera's Auto Lighting Optimizer

function, the checkbox is already checked.
3
Change the settings according to your preferences.
Auto correction is applied to the image to match the settings.

For images shot with the camera's Auto Lighting Optimizer

function, the settings at the time of shooting are applied as the
default values.
To cancel the Auto Lighting Optimizer, remove the check mark

from the checkbox.
When [Highlight tone priority] is set to [Enable] in EOS-1D X, EOS

5D Mark III, EOS 7D, EOS 60D, EOS REBEL T4i/650D, EOS
REBEL T3i/600D, EOS REBEL T2i/550D and EOS REBEL T3/
1100D, the Auto Lighting Optimizer function cannot be set.
You cannot use the Auto Lighting Optimizer with multiple-

exposure RAW images created on the camera.
Introduction
Contents at
Checkmark
Operation
Advanced
Operation
Advanced
Image Editing
Select from three levels:
and Printing
Low/Standard/Strong
Processing
Large Numbers
of Images
JPEG/TIFF
Reference
a Glance
1
Basic
2
3
4
Editing
5
Images
Index
61