This prime lens is great for photographing art as well as portraiture and taking natural looking shots. It will focus as close as 18" from the subject. The photos below were taken with this lens this weekend and were taken with natural light. It takes a 52mm filter and will fit on any Canon DSLR camera. If you're interested, contact me at mlparkes @ gmail.com.
Edit to add: I also have a 75-300mm III zoom lens for sale, if there is any interest.