I have the opportunity to buy this lens, Rikenon 50mm f2 Auto, that comes with a Vivitar 3800N body and 35-70mm f3.5-4 zoom, also Vivitar. I most likely will just store the body and zoom, but the little Ricoh lens is calling to me... Is it worth getting for the £9.99 GBP package price? And what are the pro's/con's of this lens? If anyone has experience with it or either of its close cousin models! http://www.photopentax.com/objectifs/ricoh/ricoh k/ricoh rikenon k-m 50mm f2.JPG Thanks in advance for any input!