I've been looking for one of these for some time to round out my Bessamatic kit, and finally found one on Ebay in beautiful condition, complete with the original case and velour-lined, genuine leather lens cap. My trusty "Bessie" is in the shop for routine maintenance, but I'm able to mount the lens to the Nikons using an adaptor. I haven't tried it out yet, but I will this weekend on the F100. I can't wait! Does anyone know what the filter size is on this monster?