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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 of the 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.
Aperture
All S4/i primes have a true T2 aperture and cover Super 35mm format, apart from the 300mm (2.8).
Weight/Size Ratio
The lenses are designed for all shooting applications, including handheld and Steadicam, providing comfortable balance ratio with the latest compact cameras.
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 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.
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.
SKU
S4I 135MM LENS
Focal Length
135mm
Metric/Imperial
Imperial
Focus Type
Manual
Lens Mount Type
PL Mount
Lens Design
Prime
Max Aperture
T2.0
Minimum Aperture
T22
Front Diameter
110 mm
Filter Thread
105 mm
Length
184 mm / 7.2"
Gear Mod/Pitch
0.8 MOD / 32 Pitch
Minimum Focus Distance
56.4 cm / 1.9'
Lens Coverage
Super35
Lens Angle of View
Super35: 13°
Weight
2.25 kg / 4.96 lb
code:
In the box:-
1 x Cooke S4/i 135mm T2 Cinema Lens (PL Mount)
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