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Cooke S5i

Everything you want and maybe didn’t know you needed, until now…

The  Cooke 5/i was named 2009 ‘Product of the Year’ by Film and Digital Times

Cinematographers choose Cooke lenses for the “Cooke Look” – a sharp, subtle,
smooth rendering that provides dimensionality and high contrast, and pleases the eye.

“What is the Cooke Look? Cooke’s have a shapeness, a presence to the image, a roundness, a feeling of giving depth and shape to the image. It’s sharp edge-to-edge but the image has more presence -a depth and shape that’s pleasing to the eye.”
-Ed Lachman, ASC

Cooke Optics 5/i Prime Lenses

Color-matched and compatible with Cooke S4/i, miniS4/i, Anamorphic/i,
CXX 15-40 mm T2 S4/i Zoom, 18-100mm T3.0 and 25-250mm T3.7 and the
SK4 16mm lenses, the 5/i Prime Lenses are supplied with /i Technology, and
are designed for all PL mounted professional motion picture film and electronic cameras.

Feature Highlights:

• Lenses available 18, 25, 32, 40, 50, 65, 75, 100, and 135mm
• T 1.4 to T 22 aperture
• Innovative focus ring illumination for effective low-light operation
• Color matched with all other Cooke lenses
• Unmatched ergonomics for DPs and assistants on-set
• /i Technology included as standard
• Independent metric and footage scales included
• Designed in the S4 tradition of serviceability
• Linear iris
• Cam-style focus

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 cable connector near the lens mount and contacts in mount that sync with /i compatible cameras and accessories.

Color Balance

All Cooke 5/i prime lenses are colour balanced to a specification within parameters approved by Kodak and are colour-matched and compatible with Cooke S4/i, Panchro by Cooke, CXX 15-40mm T2 S4/i Zoom, 18-100mm T3.0 and 25-250mm T3.7 and the SK4 16mm lenses.

T1.4 Aperture

All Cooke 5/i primes have a true T1.4 aperture and cover Super 35mm format.

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.

Focus Illumination*

This revolutionary, dimmable, illuminated focus ring has two separately toggled light pipes that allow the camera operator or focus puller to read the focus scale in low lighting conditions.  Illumination options are controlled on the lens or via an external controller.

Camera Mounts

Arriflex PL Mount

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 5/i primes have a common fixed front diameter of 110mm, with a focus drive gear of 140T x 0.8 mod and an iris drive gear of 134T 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

A seven-leaf linear module iris assembly is fitted into the Cooke 5/i primes with an aperture range of T1.4 to T22.

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

Cooke 5/i prime lenses are designed to meet a market requirement for fully reliable performance with a minimum of downtime.

/i Technology

All of our 5/i Prime lenses are supplied with /i Technology, and 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.

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