To shoot landscape photos that are sharp from foreground to infinity, you must focus at the "hyperfocal distance" for the focal length and aperture you're using.
This 3.5" x 5.5" laminated card gives hyperfocal data for DSLRs and mirrorless cameras with "FULL FRAME" sensors), including these popular cameras:
Covers the following:
Instructions and examples for using hyperfocal distance info are provided on the card. For more info on depth of field and hyperfocal distance, click here for a Depth of Field Discussion.