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Capture elegant, expressive imagery with the ARRI PL-mount Aizu Prime 25mm T1.3 LF Cinema Lens from Sigma. Maintaining an ultrafast T1.3 aperture across the series, Aizu lenses produce an organic, moderately sharp look with exceptionally shallow depth of field and minimal distortion for full-frame and large-format cameras.
Capture elegant, expressive imagery with the ARRI PL-mount Aizu Prime 25mm T1.3 LF Cinema Lens from Sigma. Maintaining an ultrafast T1.3 aperture across the series, Aizu lenses produce an organic, moderately sharp look with exceptionally shallow depth of field and minimal distortion for full-frame and large-format cameras.
Lens Metadata
Each ARRI PL-mount Aizu prime lens uses ZEISS eXtended technology that provides real-time lens metadata while shooting. It also lets you export distortion and shading correction data to assist in post and visual effects production.
Full-Frame Coverage
With an image circle of 46.3mm, Aizu primes can cover not only full-frame and Super 35 sensors but are compatible with large-format camera options like ARRI ALEXA LF Open Gate and VistaVision.
Consistent Look Across Series
Offering a quietly elegant and natural look, all Aizu focal lengths produce a consistent look with minimal breathing and distortion and balanced color, contrast, and flare characteristics.
Impressive Close-Ups
Short minimum focus distances help you cozy up to your subject, creating impactful close-ups and adding visual tension.
Compact and Lightweight Design
Developed from the Sigma High-Speed Prime series, the Aizu lenses' cine-style design features a lightweight, compact form and 0.8 MOD gears that are compatible with professional lens control systems. The durable housing has a wide 270° barrel rotation that enables precise focus pulls.
95mm Front Diameter
The standard front outside diameter of 95mm fits many pro matte boxes and lens shades.
Focus Marks in Feet
Focus distances are measured in feet, and like all marks on the Aizu lenses, use luminescent paint for easy visibility.
UPC: 198983942506
Sigma Aizu 25mm T1.3 (ft) Specs
Key Specs
Focal Length
25mm
Maximum Aperture
T1.3
Lens Format Coverage
Large Format (46.3 mm Image Circle)
Filter Thread
No
Image Stabilization
No
Electronic Communication
Yes
Focal Length
25mm
Maximum Aperture
T1.3
Minimum Aperture
T22
Lens Format Coverage
Large Format (46.3 mm Image Circle)
Angle of View
ARRI LF Open Gate Horizontal: 72.6° Full Frame Horizontal: 71.5° Super 35 Horizontal: 52.9°
Focus Scales
Imperial
Filter Thread
No
Minimum Focus Distance
From Camera Sensor: 12.2" / 31 cm
Magnification
1:6.5 Macro Reproduction Ratio 0.15x Magnification
Aperture/Iris Blades
13
Image Stabilization
No
Lens Mounting
1x 1/4"-20 (via Included Support Foot) 1x 3/8"-16 (via Included Support Foot)
Gear Standard
0.8 MOD
Gear Rotation
Focus: 270° Iris: 70°
Electronic Communication
Yes
Camera Connection
LEMO 4-Pin (ZEISS eXtended Lens Data) Data
Diameter
Front: 3.7" / 95 mm Maximum: 4.1" / 104 mm
Length
4.9" / 125 mm From Flange
Weight
3.6 lb / 1.6 kg
Packaging Info
Package Weight
4.7 lb
Box Dimensions (LxWxH)
11.6 x 7.3 x 6.9"
Sigma Aizu 25mm T1.3 (ft) Reviews
Poor QC From Sigma, Not Worth The Cost.
By Ryan
Rated 1 out of 5
Date: 2025-11-11
Focus Ring Is Incredibly Inconsistent And Rough. Quite A Bit Of CA Even When Stopped Down To T5.6. Cooke/I Data Is Sluggish To Respond.
Overall, Not Worth The Cost. Disappointing Coming From Sigma.
