Sigma 105mm T1.5 FF

Ultimate Telephoto Cinematic Depth Control

The Sigma 105mm T1.5 FF Cine Prime is a high-speed full-frame telephoto lens designed for maximum subject isolation, controlled compression, and expressive cinematic depth. It is a key tool for narrative filmmaking, commercial productions, and controlled studio environments where precise framing and emotional focus are essential.

With its fast T1.5 aperture, the lens enables strong separation between subject and background, creating a highly cinematic look with smooth bokeh and natural falloff. It is particularly effective for portrait-oriented cinematography, dialogue scenes, and close-up storytelling.

Optically, the lens delivers high resolution across the frame with excellent contrast and minimal chromatic aberration. The telephoto compression is rendered naturally, avoiding harsh rendering while maintaining clarity and detail even at wide open apertures.

Focus breathing is tightly controlled, ensuring stable framing during focus pulls. This is critical for narrative productions where precision and continuity are required. The lens maintains consistent color reproduction and optical character aligned with the Sigma FF High Speed Prime series.

Mechanically, the cine housing follows full industry standards with 0.8 MOD gearing, long focus rotation for precision pulling, and robust all-metal construction. It integrates seamlessly into professional rigs, studio setups, and motorized lens control systems.

Features – Sigma 105mm T1.5 FF

• Full-frame telephoto cine prime
• Fast T1.5 aperture for shallow depth of field
• Strong subject isolation and compression
• High optical resolution across frame
• Minimal chromatic aberration
• Controlled focus breathing
• Standard 0.8 MOD cine gears
• Long focus rotation throw
• Smooth manual focus control
• Full metal cine construction
• Consistent Sigma FF color science
• Optimized for portrait cinematography
• High contrast rendering
• Engraved precision scales

Mounts

• PL Mount
• EF Mount
• Sony E-Mount

Technical Specifications

• Focal length: 105mm
• Maximum aperture: T1.5
• Format: Full Frame
• Iris blades: 9
• Focus rotation: approx. 300°
• Gear standard: 0.8 MOD
• Minimum focus distance: approx. 0.95 m
• Focus type: manual cine
• Breathing: minimized
• Coating: multi-layer AR
• Housing: metal cine body
• Front diameter: 95mm

Dimensions & Weight

• Length: approx. 150–170 mm
• Weight: approx. 1.5–1.8 kg
• Front diameter: 95 mm