Cooke · PL (Positive Lock) mount · Prime lens
Cooke S4/i 50mm T2 — adapter compatibility and body matches
The Cooke S4/i 50mm T2 sits on the PL flange geometry (52 mm) — below is every body mount it adapts onto, the autofocus / IS / aperture-control level you should expect, and the specific adapter SKUs that ship the path.
Lens specifications
- Manufacturer
- Cooke
- Lens mount
- PL (Positive Lock)
- Focal length
- 50mm
- Aperture
- f/2 – f/22
- Lens type
- Prime
- Image stabilization
- No
- Weight
- 1500 g
- Filter thread
- 110 mm
- Released
- 2007
Background & adapter context
Cooke S4/i — the British cinema prime standard since 2007 (the /i suffix denotes the Cooke /i electronic metadata contact set, added to the original S4 series). PL-mount only (Cooke does not ship EF/E variants of S4/i). Famous for the 'Cooke look' — gentle skin-tone rendering, smooth highlight roll-off, and a slight cyan-magenta colour signature that DPs deliberately choose vs the higher-resolution Zeiss Master Prime look. T2 maximum aperture, 8-blade iris, parfocal across the S4/i set (12, 14, 16, 18, 21, 25, 27, 32, 35, 40, 50, 65, 75, 100, 135, 150, 180 mm). 110 mm front diameter, common across most S4/i focal lengths for matched matte-box workflow. Cooke /i contacts send distance / iris / serial-number / lens-name metadata to compatible cameras (ARRI Alexa, RED, Sony Venice) for VFX integrity. Manual focus + manual iris; the lens is purely mechanical, no AF or electronic iris drive. Cooke also ships the Mini S4/i (lighter) and Anamorphic /i — separate SKUs.
Adapting the Cooke S4/i 50 T2 onto other bodies
Every feasible body-mount destination for a PL (Positive Lock) lens, sorted by adapter feasibility. Curated adapter SKUs (linked below) cover the specific lens-side → body-side pairing — pick the row matching the body you own, then click the SKU for the full teardown.
| Body mount | Result | Adapter examples | Caveats |
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Body mount Canon EF | Mechanical |
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Body mount Canon EF-S | Mechanical |
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Body mount Canon RF | Mechanical |
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Body mount Canon FD | Mechanical |
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Body mount Canon EF-M | Mechanical |
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Body mount Nikon F | Mechanical |
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Body mount Nikon Z | Mechanical |
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Body mount Sony A / Minolta A | Mechanical |
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Body mount Sony E (incl. FE) | Mechanical |
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Body mount Fujifilm X | Mechanical |
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Body mount Fujifilm GFX (G-mount) | Mechanical |
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Body mount Micro Four Thirds | Mechanical |
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Body mount L-Mount | Mechanical |
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Body mount M42 (Pentax / Praktica screw mount) | Mechanical |
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Body mount Leica M | Mechanical |
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Body mount Pentax K | Mechanical |
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Body mount Canon EF (cine) | Mechanical |
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Body mount Canon RF (cine) | Mechanical |
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Body mount Exakta | Mechanical |
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Body mount C-mount | Mechanical |
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Body mount Praktica B | Mechanical |
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Body mount Konica AR | Mechanical |
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Body mount Minolta SR / MC / MD | Mechanical |
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Body mount Olympus OM | Mechanical |
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Body mount Contax/Yashica (C/Y) | Mechanical |
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Body mount T-mount (T2) | Speed booster |
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About the PL (Positive Lock) mount
Arri's Positive Lock cinema mount, the de-facto industry standard for high-end cine glass since 1982. 52 mm flange (the deepest of any current mount) and four locking flange-pins yield a rock-solid interface that resists shock and follow-focus torque. Pure mechanical interface — some lenses carry Cooke /i or Zeiss eXtended Data contacts for metadata pass-through, but no AF or electronic aperture in the body-to-lens protocol. PL adapters exist for nearly every mirrorless body (Sony FX, Canon C-series RF, RED, Z CAM); the deep flange means a PL-to-mirrorless adapter is always physically possible without optics.
Common questions
- What's the best body to adapt the Cooke S4/i 50mm T2 onto?
- Two strong destinations. First choice: a Canon EF body via a generic mechanical adapter ring (multiple vendors) preserves the most of the Cooke S4/i 50 T2's native behaviour (autofocus, in-lens IS where present, electronic aperture). Second choice: a Canon EF-S body via a generic mechanical adapter ring (multiple vendors) — solid fallback when the first body family is unavailable. The /matrix and /picker pages let you compare every feasible adaptation side-by-side.
- Will autofocus work when the Cooke S4/i 50 T2 is adapted onto another body?
- No — adapters in our catalogue route the Cooke S4/i 50 T2 through a mechanical path on the best-supported body (T-mount (T2)). Focus is fully manual; rely on the body's focus peaking and magnify-to-focus aids to nail focus.
- Does the Cooke S4/i 50 T2's in-lens image stabilization still work through an adapter?
- The Cooke S4/i 50 T2 has no in-lens IS / VR / OS unit — there's no in-lens stabilisation to pass through. Bodies with IBIS (most modern mirrorless) still stabilise the captured frame, but stabilisation is body-side only.