In this video Rede goes into the use of using a digital camera to photograph images from Microfilm & Microfiche Readers. The pros & cons of a digital camera with a tripod, camera mount, and holding the camera. He also goes into editing the digital images with Picasa & GIMP, free imaging software.
The advantages of these techniques are cost, time, and quality. Not as good as a real microfilm scanner, but scanners are not available everywhere.
Looks like the DCM-1 Microfilm Camera Mount that he shows in this video is still available: http://www.gscassociates.com/camera_mount.html
Software used in this video: