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ARRI Signature Prime 150mm T1.8 Cinema Lens

The ARRI 150mm T1.8 is a 150mm f/1.8 cinema lens designed for PL Mount, LPL mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.

ARRI Signature Prime 150mm T1.8 Cinema Lens

ARRI Signature Prime 150mm T1.8 Cinema Lens

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Lens Overview — ARRI 150mm T1.8

The ARRI Signature Prime 150mm is a manual-focus cinema prime lens built for large format production. Mounted on the industry-standard PL Mount, it covers large format sensor sizes and sits firmly in the telephoto focal length range. With a maximum aperture of T1.8, this lens is capable of delivering significant light-gathering performance and shallow depth of field work — qualities that make telephoto cinema primes especially valuable for portraiture, close-up work, and scenes requiring subject separation.

The lens is classified as a Cine-type optic and is designed exclusively for cinema and video camera systems, making it purpose-built for professional motion picture workflows. It is a prime lens, meaning there is no zoom mechanism — the 150mm focal length is fixed, offering consistency and optical simplicity that many cinematographers prefer over zoom lenses. At 3.5 kg, it carries meaningful mass that reflects its large format optical construction.

Image stabilization is not present, which is standard for cinema primes intended for use on stabilized rigs or gimbals. Focus is entirely manual, in keeping with the precision control requirements of professional cinema production. This lens is a dedicated tool for cinematographers working on large format productions who require a fast, telephoto prime on a PL-mount camera body.

Key Features — ARRI 150mm T1.8

150mm Fixed Focal Length: A dedicated telephoto prime with no zoom mechanism, delivering consistent optical performance and a narrower field of view suited to portraiture and subject isolation.

T1.8 Maximum Aperture: A fast T1.8 stop allows strong light gathering and produces shallow depth of field at 150mm, making subject separation pronounced even at distance.

Large Format Coverage: Designed to cover large format sensor sizes, making it compatible with cameras like the ARRI ALEXA LF and ALEXA 65 without vignetting.

LPL and PL Mount: Ships with both LPL and PL mounts included, ensuring compatibility with ARRI LF bodies natively and legacy PL-mount cinema cameras via the included adapter.

Manual Focus Design: Smooth, precise focus ring engineered for repeatable focus pulls and accurate mark-to-mark operation in professional cinema workflows.

Consistent Lens Housings: Shares the same front diameter, gear positions, and overall form factor as other Signature Primes, allowing faster lens swaps on set without rigging changes.

Lens Specifications — ARRI 150mm T1.8

ARRI 150mm T1.8 full specifications
SpecDetail
Use CasesVideo / Cinematography
Lens TypeCine
FormatFull Frame
Zoom/PrimePrime
Focal Length150mm
Maximum Aperturef/1.8
Camera SystemCinema / Video
Lens MountPL Mount, LPL
AutofocusNo
Focus TypeManual
Image StabilizationNone
Weight3.5kg

Description — ARRI 150mm T1.8

The ARRI Signature Prime 150mm is a professional cinema prime lens designed for large format sensor coverage on PL Mount cinema and video cameras. It is classified as a Cine-type, prime lens with a telephoto focal length characteristic, offering a fixed 150mm field of view with no zoom functionality. The maximum aperture of T1.8 makes this a fast lens well suited to low-light environments and scenes demanding subject isolation through shallow depth of field.

Weighing 3.5 kg, the lens is a substantial optical instrument appropriate for camera systems with robust support infrastructure. Manual focus is the sole focusing method, consistent with professional cinema production practices where dedicated focus pullers operate follow-focus systems. No image stabilization is present. The lens carries no listed filter thread, meaning filtration is best handled via an external matte box. For productions shooting on large format cameras with PL mounts, the Signature Prime 150mm T1.8 represents a dedicated telephoto option built to cinema production standards.

Pros — ARRI 150mm T1.8

  • ✓Wide maximum aperture of T1.8 enables significant light gathering and shallow depth of field at 150mm
  • ✓Large format coverage accommodates sensors up to large format dimensions
  • ✓PL Mount ensures broad compatibility with professional cinema camera systems

Cons — ARRI 150mm T1.8

  • ✗No image stabilization, requiring external stabilization solutions for handheld or moving shots
  • ✗At 3.5 kg, the lens is substantial and may demand robust support rigs or follow-focus systems
  • ✗Manual focus only — no autofocus option for operators who require it

Videos — ARRI 150mm T1.8

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

Resources & Downloads — ARRI 150mm T1.8

Manuals & Guides

Frequently Asked Questions — ARRI 150mm T1.8

What camera mount does the ARRI Signature Prime 150mm use?+
This lens uses a PL Mount, which is the standard mount for professional cinema cameras. It is designed for cinema and video camera systems.
What sensor sizes does this lens cover?+
The ARRI Signature Prime 150mm is designed for large format coverage, making it suitable for cameras with large format sensors.
Does this lens have autofocus or image stabilization?+
No. This lens is manual focus only and has no image stabilization. These are standard characteristics for professional cinema prime lenses, which rely on dedicated focus pullers and stabilized camera rigs.
How heavy is the ARRI Signature Prime 150mm?+
The lens weighs 3.5 kg. Cinematographers should account for this when selecting support equipment, matte boxes, and follow-focus systems.
Is there a filter thread on this lens?+
No filter thread size is listed in the specifications for this lens. Cinematographers requiring filtration would typically use a matte box solution instead.
Is this lens a zoom or a prime?+
This is a prime lens with a fixed focal length of 150mm in the telephoto range. It does not zoom and is optimized for consistent optical performance at that single focal length.

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