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Sigma 40mm T2.5 FF Classic Cine Prime Lens, PL Mount

The Sigma 40mm T2.5 is a 40mm f/2.5 cinema lens designed for PL Mount mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.

Sigma 40mm T2.5 FF Classic Cine Prime Lens, PL Mount

Sigma 40mm T2.5 FF Classic Cine Prime Lens, PL Mount

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Lens Overview — Sigma 40mm T2.5

The Sigma 40mm T2.5 FF Classic Cine Prime Lens in PL Mount is a manual focus cinema prime designed for full-frame sensor cameras. Built around a 40mm focal length, it sits comfortably in the standard range, making it a versatile choice for a wide variety of narrative and documentary shooting scenarios. The lens opens to T2.5, providing solid light-gathering capability for cinema work where controlled exposure and depth of field are priorities.

As a prime lens, it delivers a fixed focal length that encourages deliberate, considered framing — a workflow many cinematographers prefer on set. The PL Mount ensures broad compatibility with professional cinema camera systems that use this industry-standard mount. Weighing in at 1,500g, it has the kind of solid, substantial build expected of a dedicated cinema lens.

The 82mm filter thread accommodates a wide range of filtration options. With no image stabilization and fully manual focus operation, this lens is purpose-built for use on rigs with proper follow focus systems and tripod or gimbal support, reflecting the controlled environment of professional cinema production.

Key Features — Sigma 40mm T2.5

PL Mount: Industry-standard cinema lens mount compatible with professional camera systems from ARRI, RED, and other major manufacturers.

T2.5 Maximum Aperture: Solid light-gathering capability for cinema work where controlled exposure and depth of field separation are priorities.

Full-Frame Coverage: Image circle covers full-frame sensors, supporting the largest common cinema formats without vignetting.

40mm Standard Focal Length: Sits in the versatile standard range, offering a natural perspective well-suited to narrative, documentary, and commercial production.

Manual Focus Design: Smooth, precise manual focus ring built for repeatable focus pulls when paired with a follow focus system on a professional rig.

82mm Filter Thread: Accepts a wide range of standard cinema filtration accessories including NDs, polarizers, and diffusion filters.

Lens Specifications — Sigma 40mm T2.5

Sigma 40mm T2.5 full specifications
SpecDetail
Use CasesDocumentary, Fashion, Video / Cinematography
Lens TypeCine
FormatFull Frame
Zoom/PrimePrime
Focal Length40mm
Maximum Aperturef/2.5
Camera SystemCinema / Video
Lens MountPL Mount
AutofocusNo
Focus TypeManual
Image StabilizationNone
Filter Thread82mm

Description — Sigma 40mm T2.5

The Sigma 40mm T2.5 FF Classic Cine Prime Lens in PL Mount is a dedicated cinema prime built for professional production use. With a 40mm focal length in the standard range and a maximum aperture of T2.5, it delivers consistent, calibrated exposure performance suited to demanding cinema workflows. The lens is rated for full-frame coverage, accommodating the largest common cinema sensor formats.

Fully manual focus operation means it pairs naturally with follow focus systems and experienced focus pullers. The 82mm filter thread provides compatibility with a wide range of standard cinema filtration. Tipping the scales at 1,500g, the lens has the solid, substantial feel of a purpose-built cinema tool.

With no image stabilization, it is designed for use on properly supported rigs — tripods, gimbals, and motion control systems — where stability is managed at the equipment level rather than optically.

Pros — Sigma 40mm T2.5

  • ✓T2.5 maximum aperture offers reliable light gathering for cinema applications
  • ✓Full-frame coverage supports the largest common cinema sensor formats
  • ✓PL Mount provides compatibility with professional cinema camera systems

Cons — Sigma 40mm T2.5

  • ✗Manual focus only — no autofocus, requiring dedicated focus puller or follow focus system
  • ✗No image stabilization, making handheld use without stabilized support challenging
  • ✗Single PL Mount configuration limits use to compatible cinema camera bodies

Videos — Sigma 40mm T2.5

What Is The BEST Budget Cine Prime Lens Set?! — CVP

Resources & Downloads — Sigma 40mm T2.5

Manuals & Guides

Frequently Asked Questions — Sigma 40mm T2.5

What camera mount does this lens use?+
This lens uses a PL Mount, which is a standard professional cinema lens mount. It is designed for use with cinema cameras that accept PL Mount lenses.
Does this lens cover full-frame sensors?+
Yes, the lens is specified with a full-frame lens format, making it suitable for cinema cameras with full-frame sensors.
Does this lens have autofocus?+
No, this lens is manual focus only. It is intended for use with follow focus systems or experienced focus pullers in a professional cinema production environment.
What is the maximum aperture of this lens?+
The maximum aperture is T2.5, expressed in T-stop notation as is standard for cinema lenses, providing consistent and calibrated exposure values.
What filter size does this lens accept?+
The lens has an 82mm filter thread, allowing use of standard 82mm screw-in filters for color correction, ND, or other optical effects.
How heavy is this lens?+
The lens weighs 1,500g, which is substantial and consistent with professional cinema prime lenses designed for rigged camera setups.

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