This 40mm Anamorphic/i SF Prime Lens provides an added anamorphic flair to the classic, natural yet sharp "Cooke look". This Special Flare Cooke lens offers enhanced flares, bokeh and other aberrations, while complementing standard Anamorphic/i lenses. The 40mm prime incorporates an 11-blade iris for cinematic-looking, 2:1 oval bokeh. Designed for use with both digital cinema and film cameras, the Cooke Anamorphic/i SF primes provide a 2x squeeze, and cover image formats up to Super 35. For maximum optical performance, aberration, flare, and distortion control extends over the entire image area, and throughout the 40mm's T2.3-22 aperture range. The Anamorphic/i SF primes are color-matched with Cooke's Anamorphic/i, S4/i, 5/i, and mini S4/i series of prime lenses.