>I didn't find any, but I looked less closely at the less wide lenses; >I expected it to be more likely among the older and wider models. >(Are you making a sharp distinction between "fisheye" and "wide >angle"? I've been treating the fisheye as just a special sub-category.) David, Fisheyes are in my opinion also just a sub-category. They are also retrofocus and in addition are not rectilinear. It would be quite difficult to make a conventional rectilinear lens that covered 180 degrees in every direction I think. Dan C did find the one (were there more?) wide angle lens that required mirror lock-up. :) ... made by Leica! interesting. cheerio, andy