ATM system • Products • Lenses • Cooke S4i T2
Cooke S4i T2

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 focal lengths are color balanced, achieving excellent contrast and resolution over the full Super 35 format.
TECHNICAL SPECIFICATIONS
Focal Length | Aperture | Close Focus | Weight | Length | Front Diameter | Image |
14mm S4 | T2 | 225mm / 9″ | 2.2 kg 4.8 lbs | 5″ | 110mm | 32 |
18mm S4i | T2 | 225mm / 9″ | 1.75 kg 3.85 lbs | 4.5″ | 110mm | 32 |
21mm S4i | T2 | 250mm / 10″ | 2.0 kg 4.4 lbs | 4,5″ | 110mm | 32 |
25mm S4i | T2 | 250mm / 10″ | 1.6 kg 3.5 lbs | 4.5″ | 110mm | 34 |
27mm S4 | T2 | 250mm / 10″ | 1.60 kg 3.55 lbs | 4.5″ | 110mm | 34 |
32mm S4 | T2 | 325mm / 12″ | 1.85 kg 4.0 lbs | 5″ | 110mm | 34 |
35mm S4i | T2 | 350mm / 14″ | 1.90 kg 4.20 lbs | 5″ | 110mm | 37 |
40mm S4i | T2 | 350mm / 14″ | 2 kg 4.4 lbs | 5.5″ | 110mm | 37 |
50mm S4i | T2 | 550mm / 20″ | 1.5 kg 3.3 lbs | 4.9″ | 110mm | 39 |
65mm S4i | T2 | 700mm / 27″ | 1.6 kg 3.55 lbs | 4.9″ | 110mm | 39 |
75mm S4i | T2 | 800mm / 30″ | 1.75 kg 3.85 lbs | 4.9′ | 110mm | 43 |
100mm S4i | T2 | 950mm / 36″ | 2 kg 4.4 lbs | 5.5″ | 110mm | 43 |
135mm S4i | T2 | 850mm / 33″ | 2.25 kg 4.95 lbs | 7.3″ | 110mm | 43 |