Sigma 40mm T1.5 FF High-Speed Prime Lens for Canon EF, Meter

Before Sigma Corporation ventured into the cinema lens market, the need for high-resolution lenses compatible with the latest digital cinema cameras was growing. Recognizing this demand, Sigma introduced its Cine Lenses, specifically engineered for cinematography. These lenses are part of Sigma's FF High-Speed Prime Line, which includes five lenses ranging from 20mm to 85mm, all boasting a wide T1.5 aperture.

Designed for full-frame sensors, these compact lenses outperform other high-end prime sets in resolution. They offer consistent light levels across various shots, eliminating the need to adjust lighting. This consistency extends to the film's look, color, and contrast, reducing post-production work.

Each Cine lens model is weatherproof and features luminous paint markings for easy operation in low light conditions. They offer a long focus rotation of 180 degrees, guided by cams for smooth operation and precision. The design includes standardized essentials such as an 82mm front for ND filters, a 95mm front diameter for matte box use, and standard gear positions for accessories like follow focus.

These lenses also feature manual linear iris control and electronic mounts that provide essential camera metadata. Each lens undergoes rigorous inspection in Sigma's factory in Aizu, Japan, ensuring compliance with all specifications.

Sigma's proprietary A1 Modulation Transfer Function (MTF) measuring system is used to inspect each lens, capturing even high-frequency details previously undetectable. This meticulous inspection process guarantees high-performance shooting with ultra-high resolution sensors.

Sigma's design process uses computer-based ray tracing from the initial stage to minimize flare and ghosting, enhancing contrast in backlit conditions. The lenses also deliver sharpness combined with an outstanding bokeh effect, meeting high demands for image quality in both still photography and cinematography.

All lenses in the lineup comply with Sigma's CCI standard, ensuring standardized color balance for easy color correction. They are ready for 6K-8K class resolution shooting, making them ideal for chroma keying.

Despite their high performance, these lenses are lightweight and compact, thanks to Sigma's high-precision, high-efficiency mass production technologies. They feature dust-proof and splash-proof construction, with each ring and mount specially sealed for use in tough conditions.

The lenses also feature luminous paint for enhanced visibility in low light conditions, and laser engraving for long-term use. Sigma also offers a robust selection of accessories, including a USB Dock for firmware updates and a Mount Conversion Service for lens conversion between EF and E-mounts.

Sigma's entry into the cinema lens market with its Cine Lenses offers a high-quality, professional, and reliable solution for cinematographers seeking superior resolution and performance.