Sigma Aizu Prime 35mm T1.3 LF

Cinematic Large Format Prime

The Aizu Prime 35mm T1.3 LF represents one of the most essential focal lengths within Sigma’s Aizu Prime cinema lineup, delivering a classic cinematic field of view combined with the extraordinary brightness and rendering consistency of the series. As part of the world’s first lineup of large-format cinema lenses with a constant T1.3 aperture across all focal lengths, the lens establishes a new standard for high-end filmmaking.

The 35mm focal length has long been considered a foundational cinematic perspective, offering a natural balance between environmental context and subject intimacy. This makes the lens exceptionally versatile across narrative filmmaking, commercials, music videos, handheld cinematography, and documentary production.

Optically, the Aizu Prime 35mm T1.3 LF combines modern high-resolution imaging performance with an intentionally organic cinematic character. Images maintain exceptional clarity while preserving soft tonal transitions, natural skin rendering, and refined highlight behavior. The lens avoids the overly clinical rendering often associated with digital cinema optics, instead producing dimensional and emotionally engaging imagery.

The ultra-fast T1.3 aperture provides outstanding low-light capability and exceptionally shallow depth of field, allowing cinematographers to isolate subjects with cinematic precision while maintaining smooth and natural focus falloff. Focus breathing and distortion are carefully minimized to maintain composition integrity during focus transitions and camera movement.

Mechanically, the lens features a professional cine-standard housing with robust metal construction, standardized gear placement, and a long 270° focus rotation for highly precise manual focus operation. The compact form factor allows seamless integration into handheld, Steadicam, crane, and gimbal workflows.

Support for Cooke /i Technology and ZEISS eXtended Data enables advanced metadata workflows for VFX production, post-production tracking, and virtual production environments.

Features – Aizu Prime 35mm T1.3 LF

• Constant ultra-fast T1.3 aperture
• Full-frame large-format image coverage
• Classic cinematic 35mm perspective
• Organic rendering with modern resolution
• Exceptional low-light capability
• Cinematic shallow depth of field
• Controlled focus breathing
• Reduced geometric distortion
• Smooth cinematic bokeh
• Natural skin tone rendering
• 46.3mm image circle
• Standardized cine mechanics
• Long 270° focus throw
• Compact lightweight housing
• Full metal construction
• Compatible with Cooke /i Technology
• Supports ZEISS eXtended Data
• Optimized for professional cinema workflows

Mounts

• PL Mount
• Sony E-Mount

Technical Specifications

• Lens type: Large Format Cinema Prime Lens
• Focal length: 35mm
• Aperture range: T1.3 – T22
• Image circle: 46.3mm
• Iris blades: 13-blade diaphragm
• Front diameter: 95mm
• Focus rotation: 270°
• Iris rotation: 70°
• Gear standard: 0.8 MOD
• Metadata support: Cooke /i + ZEISS eXtended Data
• Cine-standard mechanical design
• Compatible with professional cinema accessories
• Designed for full-frame cinema cameras
• Optimized for 6K–8K capture systems

Dimensions & Weight

• Compact professional cine housing
• Lightweight design optimized for handheld and gimbal workflows
• Standardized dimensions across the Aizu Prime lineup