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Cooke SP3 50mm T2.4 Prime Lens for Full-Frame Cameras, Sony E Mount

The Cooke 50mm T2.4 is a 50mm f/2.4 lens designed for Sony E mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.

Cooke SP3 50mm T2.4 Prime Lens for Full-Frame Cameras, Sony E Mount

Cooke SP3 50mm T2.4 Prime Lens for Full-Frame Cameras, Sony E Mount

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Lens Overview — Cooke 50mm T2.4

The Cooke SP3 50mm T2.4 is a cine-style prime lens built for full-frame mirrorless cameras, offered here in Sony E mount. Designed squarely in the cine tradition, it carries a T2.4 maximum aperture rating — a true transmission measurement rather than a theoretical f-stop — giving cinematographers and hybrid shooters a reliable, calibrated light value for exposure consistency across a set of matched lenses. At 50mm on a full-frame sensor, this focal length sits in classic standard territory, well-suited to a wide range of narrative, documentary, and commercial work.

The lens is manual focus only, which aligns with professional cine workflows where precise, repeatable focus pulls matter more than autofocus speed. Weighing in at 575g, the SP3 50mm strikes a balance between substantive build quality and a size profile that remains practical for gimbal and drone use. A 58mm filter thread accommodates common accessories, and the Sony E mount integration means it fits directly onto a broad range of full-frame and APS-C Sony mirrorless bodies without an adapter.

No image stabilization is included, consistent with cine lens conventions. This is a purpose-built tool for operators who prioritize optical consistency, controlled manual focus, and cine-standard aperture markings.

Key Features — Cooke 50mm T2.4

T2.4 Calibrated Aperture: True light-transmission rating (T-stop) rather than a theoretical f-stop, ensuring consistent exposure when matched with other lenses in a set.

50mm Full-Frame Coverage: Classic standard focal length with full-frame image circle, delivering no vignetting on Sony full-frame mirrorless bodies.

Native Sony E Mount: Fits directly onto Sony full-frame and APS-C mirrorless cameras without an adapter, maintaining a compact and reliable connection.

Manual Focus Design: Smooth, precise focus ring built for repeatable focus pulls in narrative, documentary, and commercial cine workflows.

Cooke Look Rendering: Inherits Cooke's characteristic optical rendering — known for warm, organic skin tones and smooth transitions into out-of-focus areas.

Lightweight Cine Build: At 575g, the lens is substantively built yet light enough for practical use on gimbals and drones.

Lens Specifications — Cooke 50mm T2.4

Cooke 50mm T2.4 full specifications
SpecDetail
Use CasesStudio, Video / Cinematography
Lens TypeCine
FormatFull Frame
Zoom/PrimePrime
Focal Length50mm
Maximum Aperturef/2.4
Camera SystemMirrorless
Lens MountSony E
AutofocusNo
Focus TypeManual Focus
Image StabilizationNone
Filter Thread58mm

Description — Cooke 50mm T2.4

The Cooke SP3 50mm T2.4 Prime Lens is a cine-type prime designed for full-frame mirrorless cameras in the Sony E mount ecosystem. Its T2.4 maximum aperture delivers a calibrated, true-transmission light value — the standard measurement used on professional cine sets — making it a reliable choice when consistency across multiple lenses matters. At 50mm, this standard focal length is versatile for a wide range of shooting scenarios from narrative filmmaking to hybrid stills and video work.

The lens is manual focus only, with no autofocus system, which aligns with the deliberate, controlled focus techniques used in cine production. A 58mm filter thread provides compatibility with a wide selection of filters and matte box step rings. Weighing 575g, the lens is substantial enough to feel well-built while remaining practical for use on gimbals and stabilized rigs.

There is no image stabilization, consistent with cine lens design conventions where stabilization is typically handled at the rig or body level.

Pros — Cooke 50mm T2.4

  • ✓T2.4 maximum aperture provides a calibrated, true light-transmission rating valuable for multi-lens cine sets
  • ✓Full-frame coverage (lensFormat: Full Frame) ensures no vignetting on full-frame Sony E mount bodies
  • ✓Native Sony E mount fit eliminates the need for an adapter

Cons — Cooke 50mm T2.4

  • ✗No autofocus (autoFocus: false) limits usability for run-and-gun or hybrid photo shooters who rely on AF
  • ✗No image stabilization (imageStabilization: None) means handheld shooting depends entirely on body IBIS or a stabilized rig
  • ✗Single focal length (50mm prime) offers no zoom flexibility, requiring lens swaps to change framing

Reviews — Cooke 50mm T2.4

Videos — Cooke 50mm T2.4

Cooke's NEW Modern Tiny Speed Panchro Cine Lenses!! - Cooke SP3 Lens Review — CVP

Resources & Downloads — Cooke 50mm T2.4

Manuals & Guides

Frequently Asked Questions — Cooke 50mm T2.4

Does this lens support autofocus on Sony E mount cameras?+
No. The Cooke SP3 50mm T2.4 is a manual focus lens only. It is designed for cine workflows where focus is controlled deliberately by a focus puller or the operator rather than by an autofocus motor.
Will this lens cover a full-frame Sony camera like the Sony a7 series?+
Yes. The lens is rated for full-frame format coverage, so it will cover the full sensor area of full-frame Sony E mount cameras without vignetting.
What does T2.4 mean, and how is it different from f/2.4?+
T-stops measure actual light transmission through the lens, accounting for any light lost to internal elements, while f-stops are a theoretical geometric calculation. A T2.4 rating means cinematographers can trust consistent exposure values when matching this lens with other T-stop rated lenses on a production.
What filter size does this lens use?+
The Cooke SP3 50mm T2.4 has a 58mm filter thread, allowing use of standard 58mm screw-on filters and compatible matte box adapters.
How heavy is the lens, and is it suitable for gimbal use?+
The lens weighs 575g, which is a manageable weight for many gimbal setups, though the total payload will depend on the camera body and gimbal specifications.

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