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Cooke S4 T2

“Optical Design
The optics are designed to give maximum performance at full aperture with superior control of flare, distortion and spherical aberration.

/i Electronics
Accessible via contacts in PL mount that sync with /i compatible cameras.

Colour Balance
All S4/i prime lenses are colour balanced, colour-matched and compatible with Cooke 5/i, miniS4/i and Anamorphic/i.

Aperture
All S4/i primes have a true T2 aperture and cover Super 35mm format, apart from the 300mm (2.8).

Index Marks
Every index mark is labelled. More detailed markings allow for more detailed focus control.

Focus Movement
Our Academy Award? winning cam-style focus movement coupled with the added benefit of a large lens barrel diameter, has allowed for an increased number of focus markings, particularly at close focus. Spherical aberration has been controlled throughout the range of focal lengths to eliminate compensation of changes in back focus with aperture. A four-point contact bearing provides a smooth positive backlash-free movement.

Camera Mounts
Cooke Hardened PL Mount with /i Technology contacts.

Focus Scaling
Large, clear numerals on both sides of the focus barrel benefit the focus puller when shooting under difficult lighting conditions. Plus the Entrance Pupil position is engraved on the lens.

Compatibility
All Cooke S4/i Primes have a common fixed front diameter of 110mm, (except for 12mm, 150mm, 180mm, 300mm) with a focus drive gear of 140T x 0.8 mod and an iris drive gear of 114T x 0.8

External Finish
A scratch-resistant PTFE hard anodised finish is provided on all Cooke lenses, providing a durable, hard-wearing surface to meet the most demanding environmental conditions.

Iris
An eight-leaf linear module iris assembly is fitted into S4/i primes with an aperture range of T2 to T22.(Except 300mm)

Weight/Size Ratio
The lenses are designed for all shooting applications, including handheld and Steadicam, providing comfortable balance ratio with the latest compact cameras.

Reliability and Service
S4/i prime lenses are designed to meet a market requirement for fully reliable performance with a minimum of downtime.”

“Cooke 75mm lens left
Cooke S4i T2 Prime Lenses Set of 7
Award-winning Cooke S4/i Prime Lenses were designed and developed in close technical collaboration with industry professionals.

Cooke S4/i 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.

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Additional information

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