S4 27mm
Cooke Optics
S4 27mm
Cooke S4 Prime Lens, T2.0, PL Mount, 27mm
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.
Their optics – including a new eight-leaf linear module iris assembly – 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, while modular construction increases ease of maintenance and serviceability.
All Cooke S4 prime lenses are colour balanced to a specification within parameters approved by Kodak, and all have a true T2 aperture and cover Super 35mm format.
A 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. Large, clear numerals on both sides of the focus barrel benefit the focus puller when shooting under difficult lighting conditions.
All Cooke S4 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
A scratch resistant PTFE hard anodised finish provides a durable, hard-wearing surface to meet the most demanding environmental conditions. The lens is designed for all shooting applications, including handheld and Steadicam, providing comfortable balance ratio with the latest compact cameras.
Their optics – including a new eight-leaf linear module iris assembly – 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, while modular construction increases ease of maintenance and serviceability.
All Cooke S4 prime lenses are colour balanced to a specification within parameters approved by Kodak, and all have a true T2 aperture and cover Super 35mm format.
A 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. Large, clear numerals on both sides of the focus barrel benefit the focus puller when shooting under difficult lighting conditions.
All Cooke S4 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
A scratch resistant PTFE hard anodised finish provides a durable, hard-wearing surface to meet the most demanding environmental conditions. The lens is designed for all shooting applications, including handheld and Steadicam, providing comfortable balance ratio with the latest compact cameras.