hi - for the most part i do 90% black and white 4x5 documentary photography. i am planning on buying either a 65mm or a 75mm lens to do very wide angle work. i have been using a 90mm super angulon as my "wide lens" and a friend recently suggested that i look into getting a 65mm. i have heard the early versions of this lens barely covered 4x5 unless you had an f8, and even then the light was pretty uneven. i know i can't afford the $1700.00 that a new one will probably cost. is the difference that huge that i will be able to see right away that i have a older lens rather than a newer one? and is the difference between the 75mm and 65mm lens like night and day? i know the 65mm renders a pretty distored image, is the image from the 75mm almost as distorted? i live in rhode island and there are no places around here <unless i go to boston> to rent one so i could see for myself ... i appreciate your help<s>! thanks! john