Isco Ultra-Star* HD Plus 95/1.8

Red barrel marked 1.85 (probably 1:1.85 screen ratio, distinct from the Cinemascope variant). Native aperture is f1.8: optional ‘stops’ thread onto the front element housing. Commonly supplied with (and marked) f2.1, but f2.4 and f2.7 also available. AMP Technical Achievement Award 2000. [European barrel (62.5mm) cat. no 730.32] [US barrel (70.6mm) cat. no. 730.33]