Can't seem to find any info online about a camera body I have an opportunity to purchase, and that is a NIKON F2AS Titanium. I know there was the Titan and other F2 Ti model, but I can't find anything on an AS titanium. This one has the large pentaprism like a standard F2, stacked ASA, etc. controls and such. Is it that rare? I saw it, held it and marveled at it. The one for sale is in immaculate condition with the MD-2 motor drive, but I am trying to figure out what it's worth. It was all black, no titanium indicators, just an AS on the prism and a crinkle paint finish on all covers. It was definitely not brass. It felt incredibly solid. Can anyone tell me something about this model? Should I snatch it up? Much thanks!