In 35mm film photography terms, I've been partial to the 40mm way of seeing for some time. Nothing would make me happier than a digital version of my Olympus OM-2N on which I could mount the unassuming OM 40mm f/2 lens. It's been a pleasant surprise to recently see Panasonic and Sigma bring out compact, fixed focal length lenses with this, my favorite angle of view for candid people photography.

For those who are wondering what's so special about 40mm, The Online Photographer revisted an excellent article today.