The Contax RTS II is a 35mm single-lens reflex camera introduced in the early 1980s as the successor within Contax's RTS line. It was positioned as a professional-grade body built in collaboration between Yashica and Zeiss, carrying Carl Zeiss optics via a bayonet mount.

At recent UK auction, hammer prices for the RTS II have spanned roughly £160–£350, with the two recorded sales sitting either side of the £250 mark. At saleroom level these are wholesale figures, and today's values remain sensitive to cosmetic condition and whether the electronics still fire cleanly, so a tested working body tends to sell for more than a cosmetically tidy but untested one.