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Cooke S4/i Prime Lenses |
Focal Lengths: 12, 14, 16, 18, 21, 25, 27, 32, 35, 40, 50, 65, 75, 100,
135, 150, 180, 300mm,
and a soft focus attachment for the 65/75mm Lens
Recognition of Excellence
- 1998 Cinec Award
- 1999 Academy of Motion Picture Arts and Sciences Award for Optical and Mechanical Design Excellence
- 2000 Primetime Emmy Award, Academy of Television Arts and Sciences For outstanding achievement and and
- 2001 Queen’s Award for Technical Achievement
- 2001 Queen’s Award for Export
| Features | |
Optical Performance |
Superb control of flare, distortion, veiling glare, and spherical aberrations at full aperture. |
Focus Mechanism |
The S4 design foregoes the usual helical thread method of focus adjustment in favour of Cooke's Academy AwardŽ-winning cam mechanism. The smooth cam movement liberates the lens from a simple thread rotation giving the operator an appropriate rate of focus at all distances. The cam design also allows for better spaced and more detailed and visible index marks. |
No Breathing |
No image shift when racking focus from close focus to infinity. |
Color Balance |
All focal lengths are color balanced, achieving excellent contrast and resolution over the full Super 35 format. |
True T2.0 Aperture |
Cooke Series 4 lenses are optimized at maximum aperture, measured at a true T2.0. The Cooke S4 300mm lens is measured at a true T2.8. |
Operation |
Focus and iris drive gears have the same diameter and position across all focal lengths reducing adjustment time when changing lenses: 140 teeth 0.8 Metric Module x 6.0mm Wide (98mm from image plane) |
Iris Scales |
Two opposing linear T-Scales, whole and third stops marked |
Iris Angular Rotation |
Total Rotation 91 degrees |
Iris Drive Gear |
114 Teeth 0.8 Metric Module x 6.0mm Wide, (84mm from image plane) |
Mount and scales |
Each of the Series 4 Primes are supplied with PL mount and are available with either footage or metric focus scales. |
Finish |
Hard-wearing, scratch-resistant, PTFE anodised finish for working in the harshest environments. |
Internal Front Fitting Filter |
Internal Thread for Filter Adapter M105 x 0.75 pitch |
Cooke S4/i Specifications
Notes to Specification Table:65mm SF = Soft focus attachment for 65mm focal length and 75mm focal length via a 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.)
135mm LDS lens:
Minimum Marked Object Distance = 33 inches/900mm
Close Focus from Lens Front = 23.7 inches/664mm
Angular Rotation to MOD Endstop = 320 degrees
Cooke S4/i Brochure - English (pdf)
Cooke S4/i Brochure - Portuguese (pdf)
Cooke S4/i Brochure - Spanish (pdf)
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