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Cooke Optics Launches S4 FF/i Full-Frame Cinema Primes at $15,000 Each

other · 2026-10-22

Cooke Optics has introduced the S4 FF/i series, which consists of six full-frame cinema prime lenses, each priced at $15,000 and available for preorder in Arri PL mount. The lineup features focal lengths of 18mm, 25mm, 35mm, 50mm, 75mm, and 100mm, all with a T2.0 aperture. These lenses are updated versions of the S4/i S35 glass, designed with consistent control positions and an 87mm front diameter. Their weights vary from 1.45 kg (3.2 lbs) for the 50mm to 1.8 kg (almost 4 lbs) for the 18mm. The average close focus is 385mm, with the 25mm and 35mm at 280mm and the 100mm at 650mm. The nine-blade iris creates a circular bokeh while preserving contrast and sharpness.

Key facts

  • Cooke Optics announced the S4 FF/i series of six full-frame cinema primes
  • The lenses are 18mm, 25mm, 35mm, 50mm, 75mm, and 100mm, all at T2.0
  • Each lens is priced at $15,000 and available to preorder now
  • They ship standard in Arri PL mount
  • All six share an 87mm front diameter, 75 degrees of iris rotation, and 270 degrees of focus rotation
  • The 50mm is lightest at 1.45 kilograms (3.2 pounds); the 18mm is heaviest at 1.8 kilograms (nearly four pounds)
  • Minimum focus averages around 385 millimeters (just over 15 inches), with the 25mm and 35mm reaching 280 millimeters (11 inches)
  • Each lens uses a nine-bladed curved iris for soft circular bokeh at center and cat's-eye shapes near the edges

Entities

Institutions

  • Cooke Optics
  • Arri
  • PetaPixel

Sources