Samyang 50mm T1.3 AS UMC CS (Sony E) – Ultra Fast Aperture, Low Light Performance, Manual Focus, APS-C Cine Lens
The Samyang 50mm T1.3 AS UMC CS (Sony E) is engineered for filmmakers and content creators demanding cinematic image quality and creative control on Sony APS-C mirrorless cameras. Designed as a high-performance cine prime, it addresses the need for ultra-fast low light performance, precise manual focus, and shallow depth of field—essential for narrative filmmaking, commercial video, and documentary work. The core technology centers on a large T1.3 aperture, advanced aspherical glass elements, and a robust cine-style housing, making it a standout choice in the APS-C cine lens market.This lens solves the challenge of capturing sharp, detailed footage in challenging lighting conditions, while delivering smooth, cinematic bokeh and accurate color rendition. Its de-clicked aperture ring and geared focus system provide tactile, silent operation for professional video workflows, distinguishing it from still photography lenses and lower-end cine options. With optical engineering that rivals more expensive cinema primes, the Samyang 50mm T1.3 AS UMC CS (Sony E) empowers creators to elevate production values without breaking the budget.
Ultra Fast T1.3 Maximum Aperture
The Samyang 50mm T1.3 features an ultra-fast maximum aperture of T1.3, enabling exceptional low light performance and ultra-shallow depth of field control. This aperture rating surpasses many competing cine lenses in its class, offering greater creative flexibility for selective focus and subject isolation. This allows filmmakers to shoot clean, noise-free footage in dim environments and create dramatic, cinematic looks with beautiful background blur.
Optimized for Sony E-Mount APS-C Sensors
Purpose-built for Sony E-mount APS-C cameras, the lens delivers a 75mm full-frame equivalent field of view, ideal for portraiture, interviews, and medium shots. The optical formula is tuned to maximize sharpness and minimize distortion on APS-C sensors, outperforming adapted full-frame lenses in edge-to-edge clarity. This ensures content creators achieve optimal framing and image quality without compromise on Sony mirrorless bodies.
Manual Focus with Cine Gearing
The lens incorporates industry-standard 0.8 pitch cine gears on both the focus and aperture rings, enabling seamless integration with follow focus systems and motorized rigs. The long 150-degree focus throw provides precise, repeatable manual focus pulls, essential for narrative and commercial video production. This empowers camera operators to execute smooth, controlled focus transitions without jitter or noise.
De-Clicked, Stepless Aperture Ring
A de-clicked, stepless aperture ring allows for silent, fluid exposure adjustments during recording, avoiding the abrupt jumps common in photo lenses. This feature is critical for dynamic lighting situations and when fine-tuning depth of field mid-shot. This gives DPs and gaffers full control over exposure without disrupting audio or the visual flow.
Advanced Optical Construction with Aspherical Elements
The lens employs a sophisticated optical design featuring 9 elements in 7 groups, including one aspherical (AS) and one high refractive (HR) element. This configuration minimizes chromatic aberration, reduces distortion, and enhances overall sharpness compared to previous Samyang cine models. This results in crisp, color-accurate images with minimal optical flaws, even at wide open apertures.
Ultra Multi-Coating (UMC) Technology
Samyang’s proprietary UMC (Ultra Multi-Coating) is applied to all lens surfaces, suppressing lens flare, ghosting, and contrast loss in backlit or high-contrast scenes. This multi-layer coating technology outperforms basic coatings found on entry-level cine lenses, ensuring high transmission and true-to-life color. This lets cinematographers maintain punchy, vibrant images in challenging lighting conditions.
11-Blade Rounded Diaphragm
An 11-blade rounded diaphragm creates exceptionally smooth, circular bokeh and pleasing out-of-focus highlights, even when stopped down. This aperture design is favored for its ability to render backgrounds with a natural, cinematic quality, surpassing the 7- or 9-blade designs of some competitors. This enables visual storytellers to achieve professional-grade separation between subject and background.
Compact, Lightweight Cine Housing
Weighing just 585g (1.29 lb) and measuring 74.2mm in length, the lens is optimized for handheld, gimbal, and drone use without sacrificing build quality. The robust metal construction ensures durability on set, while the compact form factor makes it ideal for run-and-gun filmmaking. This allows operators to build versatile, portable rigs without excessive front-heavy weight.
Close Focus Distance of 0.45m (1.48 ft)
A minimum focusing distance of 0.45 meters allows for tight close-ups and intimate shots, expanding creative options for product videography and narrative inserts. This close focus capability is superior to many 50mm cine lenses, which often have longer minimum distances. This lets videographers capture detailed, immersive visuals without swapping lenses.
Consistent Color Rendition Across Samyang Cine Line
The lens is color-matched to other Samyang Xeen and VDSLR cine lenses, ensuring seamless intercutting and consistent color grading in multi-lens productions. This uniformity is a hallmark of professional cine lens sets and is essential for efficient post-production workflows. This streamlines the editing process and maintains visual continuity across scenes and camera setups.
Summary
The Samyang 50mm T1.3 AS UMC CS (Sony E) stands out as a top-tier cine prime for Sony APS-C filmmakers and content creators who demand uncompromising optical performance, robust manual controls, and industry-standard cine ergonomics. Its ultra-fast T1.3 aperture, advanced optical design, and professional build quality position it above standard photo primes and budget cine lenses, delivering results that rival more expensive cinema glass.With features like de-clicked aperture, cine gearing, UMC multi-coating, and consistent color rendering, this lens is a compelling choice for narrative, commercial, and documentary applications. Available now at ebphotovideo.com, the Samyang 50mm T1.3 AS UMC CS (Sony E) empowers creators to elevate their visual storytelling with cinematic precision and reliability.
