9. RX5 (1966 on) early models have the 10x viewfinder, later ones have 13x and 14x frame viewfinders (sometimes marked with TV frame). The example shown has probably the best ever set of standard primes f1.6 10mm Switar Rx, f1.1 26mm and f1.9 Rx 75mm Macro-Switars, all in the late black finish. Late models of the RX5 are partly finished in black Hammerite paint. Very, very desirable. The RX5 and subsequent cameras are the most suitable models for Super 16 conversion.