I would like to get some manual focus lenses in various focal lengths but I want them to have more then 6 blades. More often then not this bit of info is left off descriptions so I wanted to ask if you have or know of any such lenses. I have the following mounts that I can use them with - Canon, Konica, Minolta, Nikon, Olympus, Pentax (M42 & K) & Yashica/Contax. TIA.