Challenge
You want to photograph a building, or a stand of trees, yet keep all lines parallel even though you must angle the camera upwards to encompass the scene.

Solution
Rise
First, align the camera back parallel to the subject. Then, by using the rise movement, the lens' point of view is moved above eye level, thereby keeping vertical lines parallel. Rise, fall and shift are all parallel movements that move the lens up, down and sideways relative to the center of the camera back.

Challenge
You need more control of perspective than you can achieve with front rise, fall and shift.

Solution(s)
Drop Bed
Front and rear are tilted backward at the same degree and thereby kept parallel, giving the effect of increased Front Fall.

Incline Bed
Front and rear are tilted forward at the same degree and kept parallel, giving the effect of increased Front Rise.

Shift Bed
Front and rear are swung in the same direction to the same degree, giving the same effect as Shift, but with dramatically increased control.

Challenge
You see a vast landscape with a field of flowers and distant mountains. You want to have both the flowers near the camera and the distant mountain in focus at the same time. Even if you used the smallest aperture on your lens, you might still need greater depth-of-field.

Solution
Front Tilt
Tilting the lens forward will extend the plane of focus far beyond the effect of using a small lens aperture and allow you to get near and far objects in focus at the same time. Front tilt is usually combined with using a small aperture such as f/16 or f/22. It does not replace using a small aperture, but rather enhances the effect over a greater subject plane.

Solution
Front Swing
With a field camera, you can swing your lens to position it roughly parallel to the fence. This will allow you to get the fence in sharp focus from beginning to end, even with a wide open aperture.

Challenge
You want to focus on just one leaf or flower and leave everything else in the scene a soft blur. Or, you want to recreate an effect you may have seen in a fashion magazine where only the model's eyes are sharp, and all the clothes are softly blurred.

Solution
Front Tilt - Backward
This can be used to accomplish these selective focus effects with ease.
Front swing can be used for a similar effect with objects to the left or right of your composition center.
Swinging in either direction will bring objects in or out of focus.

Challenge
You want to emphasize a large rock, or other visual element in the foreground of a landscape.

Solution
Rear Tilt
By tilting the back away from the lens, you will notice that the size and shape of objects in the foreground become exaggerated. Similarly,

Rear Swing
Pivoting the back from side to side, manipulates the shape of objects to the right or left of the composition.