http://www.adorama.com/alc/taginfo/maximum aperture <p><span style="font-size: small;"><em>To overcome many of the problems associated with low-light photography, and give your creative juices a jump-start, use a lens with a wide maximum aperture (in the f/1.4-2.8 range) and shoot away.</em></span></p> http://www.adorama.com/alc/article/8438