Samyang 10mm T3.1 ED AS NCS CS Manual Focus, Manual Aperture Lens for Sony E-Mount, Black Review

The Samyang 10mm T3.1 ED AS NCS CS is a manual-focus, manual-aperture ultra-wide cine lens designed for Sony E-mount APS-C cameras. At 10mm on a crop sensor, it delivers a dramatic 109-degree field of view, making it a strong choice for landscape, architectural, and vlog work where space is tight. The T-stop rating (rather than an f-stop) and geared focus and aperture rings signal its video-first design, though stills shooters comfortable with manual controls can put it to work just as well.

Build quality is solid for the price, with metal housing and multi-coated optics including one extra-low dispersion element and three aspherical elements to control distortion and chromatic aberration. The manual-only operation keeps the cost down and appeals to filmmakers who prefer tactile control and smooth, clickless aperture adjustment. At $269, it undercuts many autofocus ultra-wides while offering true cine features. However, the lack of electronic communication means no EXIF data and no lens corrections in-camera, and the wide angle demands careful technique to avoid soft corners at wider apertures.