Cooke S4 /i Primes

Hire our Cooke S4 /i lenses for superb optical and mechanical performance, control of flare, distortion, veiling glare and spherical aberrations at full aperture. These Cooke Prime Lenses are colour-matched and compatible with all contemporary Cooke cine lenses. Additionally, the cam-type focus mechanism on the the S4 /i’s allows for smooth focus adjustments.

The /i Technology of these lenses provides cinematographers and camera operators with vital information on lens setting, focusing distance, aperture and depth-of-field, hyperfocal distance, owner data, lens type and focal length in both metric and footage measurements. For zoom lenses, the zoom position is also displayed.

Focal lengths in this set are: 18mm, 25mm, 32mm, 50mm, 75mm and 100mm.

Not quite what you’re looking for? Take a look at some of our other lenses here!

Cooke S4 /i Specs

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: 134 teeth 0.8 metric module x 4.0mm wide 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)

18mm

T-Stop Range: T2-T22

Angular Rotation of Iris Scale: 96°
Min. Marked Object Distance: 250 mm 9 in
Close Focus from Lens Front: 60 mm 2.5 in
Angular Rotation to MOD Endstop: 300°
Max. Diagonal Angle of View for Super 35 Format: 80°
Length from Front of Lens to Lens Mount: 113 mm 4.5 in
Max Front Diameter: 110 mm

Total Weight: 1.75 kg (3.85 lbs)

25mm

T-Stop Range: T2-T22
Angular Rotation of Iris Scale: 96°
Min. Marked Object Distance: 250 mm 9 in
Close Focus from Lens Front: 60 mm 2.5 in
Angular Rotation to MOD Endstop: 300°
Max. Diagonal Angle of View for Super 35 Format: 62°
Length from Front of Lens to Lens Mount: 113 mm 4.5 in
Max Front Diameter: 110 mm
Total Weight: 1.6 kg (3.5 lbs)

32mm

T-Stop Range: T2-T22
Angular Rotation of Iris Scale: 96°
Min. Marked Object Distance: 325 mm 12 in
Close Focus from Lens Front: 119 mm 4.9 in
Angular Rotation to MOD Endstop: 300°
Max. Diagonal Angle of View for Super 35 Format: 50°
Length from Front of Lens to Lens Mount: 129 mm 5 in
Max Front Diameter: 110 mm
Total Weight: 1.85 kg (4.0 lbs)

50mm

T-Stop Range: T2-T22
Angular Rotation of Iris Scale: 93°
Min. Marked Object Distance: 550 mm 20 in
Close Focus from Lens Front: 323 mm 13 in
Angular Rotation to MOD Endstop: 300°
Max. Diagonal Angle of View for Super 35 Format: 34°
Length from Front of Lens to Lens Mount: 125 mm 4.9 in
Max Front Diameter: 110 mm
Total Weight: 1.5 kg (3.3 lbs)

75mm

T-Stop Range: T2-T22
Angular Rotation of Iris Scale: 92°
Min. Marked Object Distance: 800 mm 30 in
Close Focus from Lens Front: 573 mm 23 in
Angular Rotation to MOD Endstop: 300°
Max. Diagonal Angle of View for Super 35 Format: 22°
Length from Front of Lens to Lens Mount: 125 mm 4.9 in
Max Front Diameter: 110 mm
Total Weight: 1.75 kg (3.85 lbs)

100mm

T-Stop Range: T2-T22
Angular Rotation of Iris Scale: 91°
Min. Marked Object Distance: 950 mm 36 in
Close Focus from Lens Front: 707 mm 28 in
Angular Rotation to MOD Endstop: 300°
Max. Diagonal Angle of View for Super 35 Format: 17°
Length from Front of Lens to Lens Mount: 141 mm 5.5 in
Max Front Diameter: 110 mm
Total Weight: 2 kg (4.4 lbs)

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

Colour Balance
All S4/i prime lenses are colour balanced, colour-matched and compatible with Cooke 5/i, miniS4/i and Anamorphic/i.

Aperture
These S4/i primes have a true T2 aperture and cover Super 35mm format

Focus Movement
A four-point contact bearing provides a smooth positive backlash-free movement.

Camera Mounts
Cooke Hardened PL Mount with /i Technology contacts.

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.