To shoot so that all of an extensive subject is in focus you must normally use a small aperture to obtain a large depth of field. But tilting allows you to keep all of the subject in focus even when there is insufficient depth of field (Example 1). or by tilting in the opposite direction , you can focus on a specific part of the subject (Example 2)

Using Tilt

• Loosen the tilt lock knob by turning it in the direction of the arrow
• Turn the tilt knob to adjust the amount of tilt. Focus the shot by turning the focusing ring
• Turn the tilt lock knob in the direction of the arrow to lock the amount of tilt for the shot

Specifications:

• Focal Length & Maximum Aperture............. 45mm 1:2.8
• Lens Construction..................................10 elements in 9 groups
• Diagonal Angle of View ........................51° (without tilt or shift)Image circle dia. 58.6mm.
• Focus Adjustment.........................Manual focus, Rear focusing system
• Closest Focusing Distance ..............0.4m / 1.3 ft
• Filter Size.................................................72mm                                                          
• Max. Diameter x Length, Weight............3.2 x 3.5 in., 1.4 lbs. /81.0 x 90.1 mm, 645g