I use a Hama clamp-on rectangular hood for 52mm filter on SMCP 28/3.5 and SMCP 35/3.5 lenses. It is light plastic and not fancy, but it does a good job. I lined the inside of the hood with flocked paper, and it is a black hole. I do the same with most solid hoods; otherwise, many of them can reflect a quite lot of light (not true for the SMCT 135/2.5 hood, it's very nice).
Jim www.jcolwell.ca
