ARRI Signature Prime 40mm T1.8 Cinema Lens
The ARRI 40mm T1.8 is a 40mm 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 40mm T1.8 Cinema Lens
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Lens Overview — ARRI 40mm T1.8
Key Features — ARRI 40mm T1.8
LPL / PL Mount Interface: Ships with PL mount; the ARRI Signature Prime series also supports LPL mount, ensuring compatibility across professional cinema camera platforms.
T1.8 Maximum Aperture: Wide maximum aperture allows for shallow depth of field and effective performance in low-light cinematography conditions.
Large-Format Coverage: Image circle designed for ARRI Large Format sensors (ALEXA LF, ALEXA Mini LF), covering sensors larger than traditional Super 35.
40mm Fixed Focal Length: Standard focal length offers a natural field of view well suited to dialogue scenes, close-ups, and general narrative work.
Manual Focus Design: Smooth, precise focus ring is built for repeatable focus pulls by a dedicated focus puller on professional cinema sets.
Consistent Front Diameter: Signature Primes share a uniform 95mm front diameter across the set, allowing accessories and matte boxes to remain unchanged between lenses.
Lens Specifications — ARRI 40mm T1.8
| Spec | Detail |
|---|---|
| Use Cases | Video / Cinematography |
| Lens Type | Cine |
| Format | Full Frame |
| Zoom/Prime | Prime |
| Focal Length | 40mm |
| Maximum Aperture | f/1.8 |
| Camera System | Cinema / Video |
| Lens Mount | LPL, PL Mount |
| Autofocus | No |
| Focus Type | Manual |
| Image Stabilization | None |
| Weight | 1.9kg |
Description — ARRI 40mm T1.8
The ARRI Signature Prime 40mm T1.8 is a dedicated cinema prime lens built for professional motion picture production. It features a PL Mount, the industry-standard cinema lens interface, and is designed to cover a Full Frame image format. With a maximum aperture of T1.8, this lens performs in demanding lighting conditions and allows cinematographers to work with a shallow depth of field when needed.
Focus is manual only, in keeping with professional cinema workflows where a focus puller handles lens operation. The lens falls within the standard focal length range at a fixed 40mm, making it a versatile option for narrative filmmaking, documentary work, and commercial production. Weighing 1.9 kg, it is a substantial but workable lens for handheld and rigged setups alike.
Image stabilization is not included, so on-set support systems are essential. This lens is purpose-built for the Cinema / Video camera system ecosystem, reinforcing its role as a professional production tool.
Pros — ARRI 40mm T1.8
- ✓Wide maximum aperture of T1.8 supports low-light shooting and shallow depth of field
- ✓Full Frame lens format provides coverage for large-format sensor cameras
- ✓PL Mount is a widely adopted industry-standard cinema mount
Cons — ARRI 40mm T1.8
- ✗No image stabilization — production must rely on external support rigs
- ✗No autofocus capability, which limits solo-operator run-and-gun workflows
- ✗No filter thread size specified, which may complicate on-set filtration planning
Videos — ARRI 40mm T1.8
The Most Popular Cinema Lenses: Zeiss, Canon, Cooke, Arri, Angénieux — In Depth Cine
Frequently Asked Questions — ARRI 40mm T1.8
What camera mount does the ARRI Signature Prime 40mm T1.8 use?+
This lens uses a PL Mount, which is the standard cinema lens mount found on a wide range of professional cinema cameras. PL Mount is the only mount listed in the specifications for this lens.
Does this lens support autofocus?+
No. The ARRI Signature Prime 40mm T1.8 is a manual focus lens only. Autofocus is not available, which is consistent with professional cinema lens design where focus is controlled by a dedicated focus puller.
What sensor size does the 40mm T1.8 cover?+
According to the specifications, this lens has a Full Frame lens format, meaning it is designed to cover full-frame sensors. It is categorized under the Cinema / Video camera system.
What is the maximum aperture of this lens?+
The maximum aperture is T1.8, measured in the T-stop scale used for cinema lenses. This wide aperture supports shooting in lower light conditions and achieving significant background separation.
Does the ARRI Signature Prime 40mm T1.8 have image stabilization?+
No. The specifications explicitly list image stabilization as None. Stable footage will depend on the camera support system and rigging used on set.
How much does this lens weigh?+
The lens weighs 1.9 kg according to the specifications. This is a standard weight range for a professional full-frame cinema prime lens.