by Julieanne Kost
In order to visualize how an image might be cropped when a specific aspect ratio (or several aspect ratios) are needed, in the Develop Module select the Crop Tool (R). Then, choose Tools > Crop Guide Overlay > Choose Aspect Ratios. Check to enable as many aspect ratio overlays as desired.
Some additional shortcuts/features:
• Tapping the “O” key will cycle through Overlays.
•Shift + O cycles the Overlay orientation.
•To define which Overlays to cycle through, choose Tools > Crop Guide Overlay > Choose Overlays to Cycle.
•To only display the overlay on mouse-down, choose Tools > Tool Overlay > Auto Show.