Samyang SYIO13518-E 135mm F1.8 AF Sony E-Mount Lens

The Samyang 135mm F1.8 AF is a telephoto prime designed for Sony E-mount photographers and videographers who need a fast, sharp lens for portraits, astrophotography, and detailed subject work. Its optical formula consists of 13 elements in 11 groups, incorporating one ultra-precision aspherical element, two high-refractive elements, and three extra-low dispersion elements to control aberrations and deliver clean, high-resolution images across the frame. The wide F1.8 aperture paired with an 11-blade diaphragm creates smooth, rounded bokeh that separates subjects from backgrounds with a natural, three-dimensional quality.

For working photographers, the lens includes practical controls that speed up the shooting process. A Focus Hold Button can be reassigned to functions like Eye AF through compatible Sony bodies, while the Focus Range Limiter narrows the autofocus search area to lock onto subjects faster. The linear STM autofocus motor operates with minimal noise and focus breathing, making the lens equally capable for video as it is for stills. At 0.69 meters minimum focus distance with 0.243x magnification, it can capture tight close-ups that most 135mm lenses cannot achieve. Weather sealing throughout the barrel protects the optics during outdoor work, and the solid 772g metal construction provides a reassuring, balanced feel on full-frame Sony bodies.