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ZEISS 21-100mm T2.9-3.9 LWZ.3 Lens

The Zeiss 21-100mm T2.9-3.9 is a 21–100mm f/2.9 cinema lens designed for PL Mount mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.

ZEISS 21-100mm T2.9-3.9 LWZ.3 Lens

ZEISS 21-100mm T2.9-3.9 LWZ.3 Lens

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Lens Overview — Zeiss 21-100mm T2.9-3.9

The ZEISS 21-100mm T2.9-3.9 LWZ.3 is a cine-spec zoom lens built around a PL Mount and designed to cover Super 35 format sensors. Spanning a focal length range from 21mm on the wide end to 100mm on the telephoto end, it offers genuine versatility across a wide variety of shooting scenarios — from establishing wide shots to tighter mid-telephoto coverage — without swapping glass. The lens opens at T2.9 at the wide end, stepping to T3.9 at 100mm, giving cinematographers a usable aperture throughout the zoom range for moderately controlled lighting environments.

Focus is entirely manual, which is standard practice in professional cinema workflows where a dedicated focus puller controls critical focus via follow focus systems. The PL Mount is the industry-standard cinema lens mount, making this lens compatible with a broad range of professional cinema cameras. With a 95mm filter thread, it accommodates common matte box and filter setups.

Weighing 2000g, it is a substantial lens that will require proper support rigging on most camera builds. There is no image stabilization, which is typical for cine lenses intended for use on stabilized rigs or gimbals.

Key Features — Zeiss 21-100mm T2.9-3.9

21-100mm Zoom Range: A single lens covers wide establishing shots through mid-telephoto framing, reducing the need to swap glass on set.

T2.9-3.9 Aperture Range: Opens at T2.9 at the wide end and steps to T3.9 at 100mm, providing usable light gathering throughout the zoom range.

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

Super 35 Coverage: Designed to cover the Super 35 sensor format, matching the most widely used frame size in digital cinema production.

Manual Focus Design: Smooth, precise manual focus ring built for repeatable focus pulls using standard follow focus systems in cinema workflows.

95mm Filter Thread: Accommodates standard matte box setups and screw-in filtration for consistent exposure and optical control on set.

Lens Specifications — Zeiss 21-100mm T2.9-3.9

Zeiss 21-100mm T2.9-3.9 full specifications
SpecDetail
Use CasesDocumentary, Video / Cinematography
Lens TypeCine
FormatSuper 35
Zoom/PrimeZoom
Focal Length21–100mm
Maximum Aperturef/2.9
Lens MountPL Mount
AutofocusNo
Focus TypeManual
Image StabilizationNone
Filter Thread95mm
Weight2000g

Description — Zeiss 21-100mm T2.9-3.9

The ZEISS LWZ.3 is a professional cine zoom lens covering a 21mm to 100mm focal length range, classified as a Wide Angle to Telephoto zoom and built for Super 35 format cinema cameras. It uses the PL Mount, the standard mount across professional digital cinema platforms, and features a T2.9 to T3.9 aperture range — opening at T2.9 at the wide end for practical use in controlled lighting environments. Focus is manual, in keeping with cinema production standards where follow focus systems are the norm.

The lens features a 95mm filter thread for use with matte boxes and optical filters common on professional sets. Weighing 2000g, the LWZ.3 is a substantial piece of glass that demands proper camera support. There is no image stabilization, so productions should plan accordingly with stabilized rigs or platforms.

This is a Cine-type zoom lens designed for productions that need a wide focal range in a single cinema-spec optic.

Pros — Zeiss 21-100mm T2.9-3.9

  • ✓Wide-to-telephoto zoom range from 21mm to 100mm covers a broad range of focal lengths in a single lens
  • ✓T2.9 maximum aperture at the wide end provides solid light gathering for a zoom lens in cinema applications
  • ✓PL Mount is the industry-standard cinema lens mount, offering broad camera compatibility in professional productions

Cons — Zeiss 21-100mm T2.9-3.9

  • ✗Aperture shifts from T2.9 to T3.9 across the zoom range, which can complicate exposure consistency during zooms
  • ✗At 2000g, the lens is heavy and will require dedicated camera support and rigging
  • ✗No image stabilization, so optical stabilization must come from the rig or camera body

Reviews — Zeiss 21-100mm T2.9-3.9

Videos — Zeiss 21-100mm T2.9-3.9

Quick Look: Zeiss 21-100mm/T2.9-3.9 Lightweight Zoom Lens — WazPieMuffin

Resources & Downloads — Zeiss 21-100mm T2.9-3.9

Manuals & Guides

Frequently Asked Questions — Zeiss 21-100mm T2.9-3.9

What camera mount does the ZEISS LWZ.3 21-100mm use?+
The lens uses a PL Mount, which is the standard mount for professional cinema cameras. It is not compatible with DSLR or mirrorless mounts without an adapter.
What sensor format does this lens cover?+
The LWZ.3 21-100mm is designed to cover Super 35 format sensors. It is not specified for larger full-frame or large-format coverage.
Does the ZEISS LWZ.3 have autofocus or image stabilization?+
No — this lens is manual focus only with no image stabilization. It is designed for professional cinema use where focus pulling is handled manually and stabilization is provided by the camera rig.
What is the filter thread size on this lens?+
The filter thread is 95mm, which is compatible with a range of matte boxes and filter systems commonly used in cinema production.
How much does the ZEISS LWZ.3 21-100mm weigh?+
The lens weighs 2000g, making it a heavy zoom that will typically require a proper camera support system or lens support bracket on any production build.
Does the aperture stay constant throughout the zoom range?+
No — the maximum aperture varies from T2.9 at the wide end to T3.9 at 100mm. This aperture shift should be taken into account when planning exposure for shots that involve zooming.

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