* Get in close and fill the frame. Use the pattern to the fullest.
* A telephoto works well, as it compresses the scene and emphasizes the pattern. Telephoto/macro zoom lenses are excellent for this.
* A tripod really allows you to compose the scene well. It also allows you to select a small aperture without camera shake, which gives you a good depth of field.
* Use a slow fine-grain film for bold colors and sharp detail.
* Low-level sunlight that casts long shadows can bring out the texture and emphasize pattern by defining it more dramatically.
* If the subject is predominately dark or light, remember to compensate on the exposure. Use a longer shutter speed (overexpose) if the subject is light; use a shorter shutter speed (underexpose) if it is dark and you are using the camera's meter.
* Work with a lens hood. It will help reduce flare. "Flag" the lens by shadowing it with your hand if the hood does not stop all the light.
* Play around a little. Try a double exposure on one frame. Reduce exposure by one stop and have the first exposure in focus and take the second exposure out of focus. This gives a nice color fringing to the subject.