Here's some great pointers I found over at toyo's website. There's definitely some good tips in here, particularly for people new to the 4x5 camera. It's a totally different machine from a 35mm or digital. It takes more time to set up and to produce a single photography but it also FORCES YOU to take more time. Many people have found that this makes them a better photographer in all areas.

Framing the Subject
Practice framing the subject before you set-up the camera. Buy a 4x5 cut-out black presentation mat to use as a "viewing frame," and a small ruler. Hold the frame about 6 inches from your eye and you will see the approximate area that a 150mm lens "sees." Bring it about 3-1/2 inches from your eye and you now have simulated the area viewed by a 90mm lens. In seconds, you can use this simple device to visualize any scene and select the best angle before you take the camera out of its case.


Visualization
Before setting your camera on the tripod, stop to think about the image you are going to create. This part of the process is called visualization. It sounds simple, but many photographers are automatically tuned into the speed of picking up a 35mm camera and just shooting away, only to find a few good images later. Because you are carefully considering the composition in your mind, you will also find that two lenses - a normal and wide angle - will serve most of your needs.

Study the Scene
Once you set-up the camera, you will see that viewing, focusing and composing on a 4x5 ground glass reveals exactly what you record on film. The image is projected directly through the lens onto the focusing screen. It appears upside down, and reversed from right to left. While at first, this may seem awkward, this abstraction is actually an aid to better composition. With experience, your eye will train itself to notice light, shade, form, shape and tonality more carefully. You will be less distracted by the world outside of your composition. You will learn to concentrate your mind's-eye on the large 4x5 area and to observe the direct result of changing focus, depth-of-field, and control of all the camera movements. All of this leads you to greater attention to detail, and a more refined sense of composition.

Exploring Large Format Camera Technique
4x5 view camera technique fosters creation of exceptionally expressive and well thought out individual images. In part, this is due to the photographer's desire to be more involved with the entire photographic process. Experimenting with a 4x5 field camera is easy, fun and inspiring. In fact, many photographers find that working in the 4x5 format improves their creative concentration and technical understanding of photography in general. The principles involved are timeless, straightforward and can be universally applied.

Hopefully you enjoyed this artice and found it helpful. If you haven't been to this site then by all means go and check it out.