Cooke S4i 16mm T2 M-Scale PL



Award winning Cooke S4 Prime Lenses were designed and developed in close technical collaboration with industry professionals.
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Manufacturer

Cooke

Award winning Cooke S4 Prime Lenses were designed and developed in close technical collaboration with industry professionals. They are colour-matched and compatible with Cooke's, 18-100mm T3.0 and 25-250mm T3.7, 15-40mm, T2.0 CXX zoom lenses and the SK4 16mm lenses.

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. 

/i Technology Logo Technology
All of our S4 Prime lenses (and CXX zoom lens) are now supplied equipped with /i Technology, as of February 2005. S4/i lenses 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.

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

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

Colour Balance
All miniS4/i prime lenses are colour balanced to a specification within parameters approved by Kodak.

Aperture
All miniS4/i primes have a true T2.8 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.

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 the Entrance Pupil position is engraved on the lens.

Compatibility
All Cooke miniS4/i primes have a common fixed front diameter of 87mm, with a focus drive gear of 121T x 0.8 mod and an iris drive gear of 119T 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 miniS4/i primes with an aperture range of T2.8 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
miniS4/i prime lenses are designed to meet a market requirement for fully reliable performance with a minimum of downtime.

T-Stop Range: T2-T22
 
Angular Rotation of Iris Scale: 96 Degrees
 
Min. Marked Object Distance: 225 mm
  9 in
 
Close Focus from Lens Front: 47 mm
  2.0 in
 
Angular Rotation to MOD Endstop: 270 Degrees
 
Max. Diagonal Angle of View for Super 35 Format: 86 Degrees
 
Length from Front of Lens to Lens Mount: 126 mm
  5.0 in
 
Max Front Diameter: 110 mm
 
Total Weight: 2.45 kg
  5.40 lbs
 
Maximum Format Cover: 30mm diameter (Super 35mm format)
 
Focus Scales: Two opposing focus scales - metric or footage.
  Scales marked from infinity to MOD
 
Focus Drive Gear: 140 teeth 0.8 metric module x 6.0mm wide x 98mm from image plane.
  140 teeth 0.8 module x 6.0mm wide x 99mm from image plane (300mm)
 
Iris Scales: Two opposing linear T-scales - whole and third stops marked.
 
Iris Drive Gear: 114 teeth 0.8 metric module x 4.0mm wide 84mm from image plane.
  134 teeth 0.8 metric module x 2.5mm wide x 80.5mm from image plane (300mm).
 
Iris Drive Gear for LDS Lens: 136 teeth, 0.8 metric module x 6.0mm x 79.5mm from image plane.
 
Internal Front Fitting Filter: Internal thread for filter adapter M105 x 0.75 pitch
  (12mm and 14mm not applicable). M120 x 1.0 pitch (150mm). M131 x 1.0 pitch (180mm, 300mm)
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