Cooke S4 optics offer superb optical and mechanical performance, control of flare, distortion, veiling glare and spherical aberrations at
full aperture. The cam-type focus mechanism allows for smooth focus adjustments. Modular construction increases ease of maintenance and serviceability.
All of our S4 Prime lenses (and CXX zoom lens) are now supplied equipped with /i Technology, as of February 2005. S4/i lenses are
designed for all PL mounted professional motion picture film and electronic cameras. The /i Technology. provides cinematographers
and camera operators with vital information on lens setting, focusing distance, aperture and depth-of-field, hyperfocal distance, serial
number, owner data, lens type and focal length in both metric and footage measurements. For zoom lenses, the zoom position is displayed.
For companies interested in producing compatible products with /i Technology, the /i protocol is available as a free download: See "S4/i
Communications v2.28 protocols" in PDF format under Technical Resources.
65 Soft Effects Attachment
The 65 Soft Effects is made for the S4/i 65mm and 75mm lenses (via Cooke 75mm adapter ring). The design for the attachment is based on Cooke's PS945 soft focus lens for 4x5 large format photography See the effect in sample photos taken with the PS945 lens. The effect is high resolution with a stunning glow to the highlights -- subtle, but most pronounced wide open at T2, becoming less pronounced as you stop down. (Effect from T2 to T4 with the 65mm lens; T2 to T5.6 with the 75mm lens.)
Maximum Format Cover
30mm diameter (Super 35mm format)
Two opposing focus scales - metric or footage. Scales marked from infinity to MOD.
Focus Drive Gear
140 teeth 0.8 metric module x 6.0mm wide x 98mm from image plane. 140 teeth 0.8 module x 6.0mm
wide x 99mm from image plane (300mm)
Two opposing linear T-scales - whole and third stops marked.
Iris Drive Gear
134 teeth 0.8 metric module x 4.0mm wide 79.5mm from image plane.
Internal Front Fitting Filter
Internal thread for filter adapter M105 x 0.75 pitch (12mm and 14mm not applicable).
M120 x 1.0 pitch (150mm). M131 x 1.0 pitch (180mm, 300mm)
Cooke S4 Lens Awards
Cinec Award for Technical Excellence, Germany
Academy of Motion Picture Arts and Sciences Scientific and Engineering Award for Optical and Mechanical Design
Primetime Emmy Award for Outstanding Achievement in Engineering Development
Two Queen's Awards for Enterprise - International Trade and Innovation, England
Winner, Exporter of the Year, 2001 International Business Award, Export Times and Trade Partners UK
Winner, Product Innovation, 2001 International Business Award, Export Times and Trade Partners UK
NAB2007 Premiere Product Award – S4/i System