AIZU PRIME 21mm T1.3 LF

NEW

aizu prime

21mm T1.3 LF

Available mounts

PL Mount / feet

PL Mount / metric

SONY E-Mount / feet

SONY E-Mount / metric

A consistent T1.3 across all focal lengths
Optical design for the demands of cinema
Huge perspective range coverage
Completely consistent look
φ46.3mm image circle
High-impact close-up expression
A Compact design that unleashes creativity
Precise operation and durability
Compatible with the Cooke /i + ZEISS eXtended Data

The world’s first※ large-format cinema lens line to achieve a T1.3 aperture across all focal lengths, Aizu Prime, adds three new lenses.

Introducing the Aizu Prime Line―the world's first lineup※of large-format cinema lenses to achieve an aperture value of T1.3 across all focal lengths.

The lineup combines modern sharpness with an organic and naturally soft look, bringing rich texture and depth to visuals.

Of the 12-lens lineup featuring a consistent T1.3 aperture across the full range from 18mm to 125mm, three new lenses—21mm, 100mm, and 125mm—now join the 8 lenses from 25mm to 75mm already released. This significantly enhances on-set versatility and creative freedom.

※As of September 2026, by Sigma.

SPECIFICATIONS

Focal Lenght 21 mm

T-stop T1.3 - T22

Number of Diaphragm Blades 13

Close Focus *1 0.35 m / 1'2

Magnification Ratio 1:9.7

Image Circle 46.3 mm

Front Diameter 95 mm / 3.7″

Filter size -

Lenght*2 PL Mount 120.1 mm / 4.8"
Sony E-mount 154.1 mm / 6.1"

Weight (kg) PL Mount: 1.6 kg / 3.6 lb
Sony E-mount: 1.7 kg / 3.7 lb

Angle of View LF Open Gate*4
82.3°
Full Frame*5
81.2°
Super 35*6
61.3°

Focus Rotation 270°

Iris Rotation 70°

Lens Support Foot SF-61

Metadata Compatibility PL Mount
Compatible with the Cooke /i + ZEISS eXtended Data output (via /i Technology-compatible lens mount or 4-pin LEMO connector)
Sony E-mount
Compatible with Sony E-mount communication protocol. Enables transmission and recording of lens metadata to supported camera bodies.

Mount / Product Barcode PL Mount
feet：00-85126-94414-8
metric：00-85126-94415-5

Sony E-mount
feet：00-85126-94416-2
metric：00-85126-94417-9

aizu prime

21mm T1.3 LF

The world’s first※ large-format cinema lens line to achieve a T1.3 aperture across all focal lengths, Aizu Prime, adds three new lenses.

SPECIFICATIONS

SUPPLIED ACCESSORIES

COVER CINE LENS CAP LCC-95 II

Rear Cap LCR III

LENS SUPPORT FOOT SF-61

SEPARATELY SOLD ACCESSORIES

MOUNT CONVERTER MC-31

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aizu prime

21mm T1.3 LF

The world’s first※ large-format cinema lens line to achieve a T1.3 aperture across all focal lengths, Aizu Prime, adds three new lenses.

SPECIFICATIONS

SUPPLIED ACCESSORIES

COVER CINE LENS CAP LCC-95 II

Rear Cap LCR III

LENS SUPPORT FOOT SF-61

SEPARATELY SOLD ACCESSORIES

MOUNT CONVERTER MC-31

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