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ARRI Signature Prime 15mm T1.8 Lens

The ARRI 15mm T1.8 is a 15mm f/1.8 cinema lens designed for LPL, PL Mount mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.

ARRI Signature Prime 15mm T1.8 Lens

ARRI Signature Prime 15mm T1.8 Lens

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Lens Overview — ARRI 15mm T1.8

The ARRI Signature Prime 15mm T1.8 is a wide-angle prime lens built for cinema and video production. Mounted on the PL Mount, it is designed around a full-frame lens format, making it well-suited for modern large-sensor cinema cameras. The lens operates at a maximum aperture of T1.8, providing significant light-gathering capability for a wide-angle focal length — useful in low-light environments or when a shallow depth of field is desired even at the wide end of the spectrum.

Manual focus is the sole focus method, which aligns with professional cinema workflows where focus pullers work with dedicated follow focus systems and precise, repeatable focus marks. There is no image stabilization, consistent with cinema lens conventions where stabilization is handled at the camera or rig level. The lens weighs 1.7 kg, which is substantial but expected for a full-frame cinema prime of this caliber.

With a focal length of 15mm, it sits firmly in the wide-angle category, lending itself to establishing shots, environmental storytelling, and immersive perspectives. The PL Mount is a widely adopted standard in professional cinema, offering a secure, mechanically robust connection to a broad range of cinema camera bodies.

Key Features — ARRI 15mm T1.8

15mm Wide-Angle Prime: A fixed 15mm focal length built for establishing shots, environmental storytelling, and immersive wide perspectives.

T1.8 Maximum Aperture: A fast T1.8 stop provides strong light-gathering capability and the ability to achieve shallow depth of field even at a wide focal length.

Large-Format Coverage: Designed to cover large-format sensors, making it compatible with ARRI ALEXA LF, Mini LF, and other large-format cinema cameras.

LPL Mount with PL Adapter: Ships in LPL mount with a PL adapter included, offering compatibility across a broad range of professional cinema camera bodies.

Manual Focus Design: Smooth, precise manual focus ring with clearly marked focus scales supports repeatable focus pulls in professional cinema workflows.

ARRI Signature Optical Design: Part of ARRI's Signature Prime series, engineered to render a natural, organic image character with controlled but pleasing bokeh rendition.

Lens Specifications — ARRI 15mm T1.8

ARRI 15mm T1.8 full specifications
SpecDetail
Use CasesVideo / Cinematography
Lens TypeCine
FormatFull Frame
Zoom/PrimePrime
Focal Length15mm
Maximum Aperturef/1.8
Camera SystemCinema / Video
Lens MountLPL, PL Mount
AutofocusNo
Focus TypeManual
Image StabilizationNone
Weight1.7kg

Description — ARRI 15mm T1.8

The ARRI Signature Prime 15mm T1.8 is a wide-angle cinema prime lens built for professional film and video production. It uses a PL Mount and is designed around a full-frame lens format, making it compatible with large-sensor cinema cameras. The T1.8 maximum aperture provides strong light sensitivity for a wide-angle lens, giving cinematographers flexibility in controlled and challenging lighting conditions.

Focusing is entirely manual, reflecting standard cinema production practices where focus is managed by a dedicated focus puller using follow focus equipment. There is no image stabilization built into the lens, keeping the optical design focused on image quality and consistency. Weighing 1.7 kg, it is a solid, professional-grade optic appropriate for cinema rigs.

This prime lens at 15mm is categorized within the Cinema / Video camera system and is well-positioned for wide establishing shots and immersive visual storytelling in high-end production environments.

Pros — ARRI 15mm T1.8

  • ✓Wide maximum aperture of T1.8 enables strong light gathering at a 15mm focal length
  • ✓Full-frame lens format supports large-sensor cinema cameras
  • ✓PL Mount provides a professional-grade, industry-standard lens connection

Cons — ARRI 15mm T1.8

  • ✗No image stabilization, requiring external stabilization solutions on the rig
  • ✗Manual focus only — no autofocus option for run-and-gun or hybrid shooting styles
  • ✗At 1.7 kg, the lens adds meaningful weight to a cinema rig

Videos — ARRI 15mm T1.8

What Makes Cinema Lenses So Special!? | DEEP DIVE on Arri Signature Primes — Potato Jet

Resources & Downloads — ARRI 15mm T1.8

Manuals & Guides

Frequently Asked Questions — ARRI 15mm T1.8

What mount does the ARRI Signature Prime 15mm T1.8 use?+
The lens uses a PL Mount, which is the standard connection type specified in the mount data. This is a professional cinema mount found on a wide range of cinema camera bodies.
Does this lens support autofocus?+
No. The lens is manual focus only, as indicated by the focusType and autoFocus fields in the specifications. This is standard for cinema lenses intended for use with follow focus systems.
What sensor size does the ARRI Signature Prime 15mm T1.8 cover?+
The lens format is specified as Full Frame, meaning it is designed to cover full-frame cinema sensors. It is categorized for Cinema and Video camera systems.
How heavy is the ARRI Signature Prime 15mm T1.8?+
The lens weighs 1.7 kg according to the weight specification. This should be accounted for when balancing a cinema rig or selecting a suitable support system.
Does the lens have image stabilization?+
No. The imageStabilization field is listed as None, which is typical for cinema prime lenses where stabilization is managed externally through gimbals, rigs, or in-camera systems.
What is the focal length of this lens?+
The focal length is 15mm, confirmed by both the minFocalLength and maxFocalLength fields in the specifications. It is classified as a wide-angle focal length range.

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