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Cooke S5 Prime Lenses

See in the dark like never before with T1.4 speed and a focus ring that illuminates when you need it. Harness the visibility you need without affecting the light coming into the camera, allowing you to get the perfect shot each time.

Exceptional performance

Superior optical and mechanical performance, control of flare, distortion, veiling glare and spherical aberrations at full aperture.


T1.4 speed and a focus ring that eliminates the need for an external lamp.


Colour matched and compatible with Cooke S4/i, miniS4/i, CXX 15-40 mm T2 S4/i Zoom, 18-100mm T3.0 and 25-250mm T3.7 and the SK4 16mm lenses.


/i Technology collects detailed lens data for production, VFX and post-production teams.

See the Range

S5 Showreel

Watch our showreel showcasing the latest to be shot on the Cooke S5/i.

Shot on Cooke


All Features

Optical Design

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

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

Ergonomically designed to have smooth and accurate travel – whilst utilising precision mechanics to provide a consistent feel in operation through the entire focus movement

/i Technology

The Cooke /I Technology ecosystem provides critical lens metadata such as focus and Iris position as well as individually calibrated lens distortion and shading maps. Suitable for the most modern VFX applications such as Virtual Production shooting


All 5i series Primes have standardised 0.8 MOD focus and Iris drive gears

Weight/Size Ratio

Optimised for the series and suitable for all shooting applications

Colour Balance

All 5i prime lenses are colour balanced and colour matched – ensuring consistency across the series


The 5i series of prime lenses feature a seven-leaf linear module iris assembly. Providing an aperture range of T1.4-T22

Focus Scales

All 5i lenses have a patented back-lit, variable illumination focus ring. They are factory calibrated focus scales with clearly identifiable distance marks

Camera Mounts

Precision PL Mount with /i Technology Electrical Contacts

External Finish

Durable and Hard wearing surface finish to meet the needs of the most demanding environmental conditions

Reliability and Service

All 5i series prime lenses are designed for full performance and reliability with a minimum of downtime


T-Stop Range
Angular Rotation of Iris Scale
Min. Marked Object Distance
Close Focus from Lens Front
Angular Rotation to MOD Endstop
Max. Diagonal Angle of View for Super 35 Format
Length from Front of Lens to Lens Mount
Max Front Diameter
Total Weight
350 mm 14 in350 mm 14 in350 mm 13 in400 mm 16 in500 mm 20 in600 mm 2 ft650 mm 2 ft 3 in750 mm 2 ft 6 in800 mm 2 ft 9 in
120 mm 5 in120 mm 5 in120 mm 5 in171 mm 7 in270 mm 11 in370 mm 1 ft 3 in420 mm 1 ft 4 in520 mm 1 ft 8 in531 mm 1 ft 8 in
171 mm 6.73 in171 mm 6.79 in177 mm 6.9 in177 mm 6.9 in177 mm 6.9 in177 mm 6.9 in177 mm 6.9 in177 mm 6.9 in219mm 8.6 in
110 mm 4.33 in110 mm 4.33 in110 mm 4.33 in110 mm 4.3 in110 mm 4.3 in110 mm 4.3 in110 mm 4.3 in 110 mm 4.3 in136 mm 5.3 in
3.03 kg 6.67 lbs2.89 kg 6.56 lbs2.7 kg 6.1 lbs2.7 kg 6.1 lbs3.2 kg 7.1 lbs3 kg 6.8 lbs2.9 kg 6.6 lbs2.8 kg 6.4 lbs5.1 kg 11.2 lbs