Canon EOS Rebel SL1 18-55mm IS STM Lens Kit Black Manual (en)

Enlarging a Specific Area
You can enlarge a specific area in the main window to 100%.
In the main window, double-click the area you want 
to enlarge.
The area you double-clicked is enlarged to 100% (actual pixel 
size). If you wait for a while, it changes to a clearer display.
To change the display position, drag on the image or drag the 
enlargement display position 
 in the [Navigator] window.
Double-click again to revert to the full view.
Adjusting While Comparing with the Original Image
You can display before and after versions of an adjusted image in the 
same window and perform adjustments while checking the adjustment 
Select [
] or [
The images are displayed split top and bottom or left and right.
] (Top/bottom split) display
] (Left/right split) display
The image before adjustment 
is displayed at the top, and 
that after adjustment at the 
The image before adjustment 
is displayed on the left, and 
that after adjustment on the