- Lenses available 12, 14, 16, 18, 21, 25, 27, 32, 35, 40, 50, 65, 65SF, 75, 75SF, 100, 135, 150, 180, 300mm
• T 2 to T 22 aperture
• Color matched with all other Cooke lenses
• Unmatched ergonomics for DPs and assistants on-set
• /i Technology included as standard
• Control of flare, distortion, veiling glare and Spherical averrations at full aperture
• Designed in the S4 tradition of serviceability
• Linear iris
• Award winning Cam-style focus
The optics are designed to give maximum performance at full aperture with superior control of flare, distortion and spherical aberration.
Accessible via cable connector near the lens mount and contacts in mount that sync with /i compatible cameras and accessories.
All Cooke 4/i prime lenses are colour balanced to a specification Cooke 5/i, miniS4/i, & Anamorphic/i.
All Cooke S4/i primes have a true T2 aperture and cover Super 35mm format.
Every index mark is labelled. More detailed markings allow for more detailed focus control.
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.
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.
Arriflex PL Mount with i/ Technology contact.
Large, clear numerals on both sides of the focus barrel benefit the focus puller when shooting under difficult lighting conditions.
All Cooke S4/i primes have a common fixed front diameter of 110mm (except for the 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.
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.
An eight-leaf linear module iris assembly is fitted into the Cooke S4/i primes with an aperture range of T2 to T22 (except 300mm).
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 S4/i prime lenses are designed to meet a market requirement for fully reliable performance with a minimum of downtime.
All of our S4 Prime lenses (and CXX zoom lens) 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. For zoom lenses, the zoom position is displayed
|T Stop Range||T2 – T22|
|Angular Rotation of Iris Scale||92 degrees|
|Minimum Marked Object Distance||30 inches / 800mm|
|Close Focus from Lens Front||20.7 inches / 564mm|
|Angular Rotation to MOD End Stop||340 degrees|
|Maximum Diagonal Angle of View for Super 35mm Format||13 degrees|
|Length of Lens (Lens Mount to Front)||7.3 inches /184mm|
|Total Weight||4.95 lbs. / 2.25 kg|
|Maximum Format Cover||30mm diameter (Super 35 format)|
|Focus Scales||Two opposing focus scales – metric or footage. Scales marked from infinity to MOD|
|Focus Drive Fear||140 teeth 0.8 metric module x 6.0 wide x 98mm from image plane|
|Iris Scales||Two opposing linear T-scales whole and third stops marked|
|Iris Drive Gear||134 teeth, 0.8 metric module x 4.0mm x 79.5mm from image plane|
|Internal Front Fitting Filter||Internal thread for filter adapter M105 x .075 pitch|