i am lokking for a new lens for 6x9 and would like something fast like an old schneider xenotar or zeiss (f2.8) and i am trying to get an idea of how much sharper a modern lrns like a symmar would be, I am looking for something in the 100-135mm range. Contrast issues are not as important because i mostly shoot at night and the subject matter tends to be pretty contrasty anyways. I also posted something about the newer gigital lenses and possibly using one of those, I guess they are higher resoluton than the regular film lenses, however they are not faster. Also if i do go for the modern lens is there much difference between a nikon, schneider and rodenstock, if they all modern versions. Also what does APO mean, i think it has something to do with color film (which i dont use) would these also be sharper or better in some other way for my purposes? I noticed that on my old lenses with compur shutters that the iris is more round because they have more blades than modern copals, does that help the out of focus areas? why dont new shutters have more blades for the iris? does it not matter? anyody know much about a zeiss unar soft focus lens, cant find much and i saw one for sale listed as an f/1.5, sound pretty cool.