A black Cooke S4 FF/i cinema lens stands vertically in spotlight against dark, textured background. Includes cooke s4 ff/i lenses.

Cooke Unveils S4 FF/i Full-Frame Cinema Lenses: Six Primes with T2.0 Apertures

2026-10-23

Cooke S4 FF/i Lenses: Technical Excellence

Cooke Optics has introduced the S4 FF/i series, an enhanced full-frame iteration of their renowned S4/i S35 cinema lenses. This collection, known as the S4 FF/i series, features six prime lenses with fast T2.0 apertures, meticulously crafted for cinema enthusiasts.

The series comprises 18mm, 25mm, 35mm, 50mm, 75mm, and 100mm primes, each designed with consistency and precision. These products boast 87mm front diameters, allowing easy swapping on rigs. With 75-degree iris rotation and 270-degree focus rotation, they ensure seamless operation. Most of them feature 82mm front filter threads, except the 18mm T2.0, which is still matte box compatible.

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Six black Cooke cinema lenses arranged by focal length from 18mm to 100mm. — A row of six black Cooke cinema lenses arranged by focal length from 18mm to 100mm against a dark background.

Weight and Focus Capabilities of Cooke S4 FF/i Collection

The 50mm T2.0 lens weighs in as the lightest at 1.45 kilograms (3.2 pounds), while the 18mm T2.0 is the heaviest at 1.8 kilograms (nearly four pounds). Lens lengths vary from 89.3 millimeters (3.5 inches) to 124 millimeters (4.9 inches).

Cooke emphasizes the superior close-focusing abilities of this series, each offering class-leading minimum focusing distances. The 25mm and 35mm primes achieve a close focus of 280 millimeters (11 inches), while the 100mm T2.0 focuses at 650 millimeters (25.6 inches).

A Cooke cinema lens resting against a gradient dark background.

Flare and Image Rendering

The S4 FF/i series delivers “layered and complex” flares, providing unique character without overpowering the frame. Veiling flare respects the color of light sources, maintaining image contrast and avoiding excessive haze. Consistent character and subtle warmth define the set’s rendering, promising natural skin tones and vibrant color. Gentle contrast falloff and sharpness from edge to edge distinguish these modern optics from vintage alternatives.

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Each lens is designed with a nine-bladed iris to produce soft, circular bokeh, emphasizing the importance of the T2.0 speed. Cat’s-eye bokeh appears at the edges, transitioning smoothly as the lenses are stopped down.

Black Cooke S4/i 50mm lens on dark surface, spotlight illuminated from above. — A black Cooke S4/i 50mm cinema lens sits on a dark, textured surface, illuminated by a spotlight from above.

Availability and Pricing

The Cooke S4 FF/i lineup is available for preorder at $15,000 each, featuring the standard Arri PL mount.

Image credits: Cooke Optics

Source: petapixel.com

Frequently asked questions

What are the available focal lengths of Cooke S4 FF/i lenses?

The Cooke S4 FF/i series includes 18mm, 25mm, 35mm, 50mm, 75mm, and 100mm primes.

How much does the Cooke S4 FF/i series cost per lens?

The Cooke S4 FF/i lineup is available for preorder at $15,000 each.

What is unique about the flare rendering of Cooke S4 FF/i lenses?

The S4 FF/i series delivers ‘layered and complex’ flares, respecting the color of light sources, maintaining image contrast, and avoiding excessive haze.