The Samyang AF 35-150mm F/2-2.8 lens for L-mount is a versatile zoom lens with focal lengths ranging from 35mm to 150mm, designed for professional photography and videography applications. With a fast maximum aperture of F/2 at wide angle and F/2.8 at telephoto, this lens offers excellent performance in low light and attractive background blur effects. The optical construction includes 21 elements in 18 groups, including 12 special lenses to minimize aberrations and distortions. Ultra Multi-Coating technology effectively reduces stray light and ghosting for clear, natural image quality throughout the zoom range. The minimum focusing distance is 32cm at 35mm and 85cm at 150mm, allowing for detailed close-up shots. Autofocus is achieved through a Linear Stepping Motor system that provides fast, precise focusing with excellent tracking capabilities. The lens features several video-optimized functions, including Digital Par Focal to maintain focus during zooming and a Dolly Shot mode for professional cinematic effects. The physical construction is characterized by a robust metal housing with weather sealing at 11 points, providing protection against dust, light rain, and snow. Additional features include a zoom lock switch to secure the lens at 35mm for transport, two programmable function buttons with focus memory for two focus positions, and three programmable mode switches that can be configured with the optional Lens Station. The nine-blade diaphragm contributes to smooth, natural bokeh effects. This lens covers five main focal lengths, including 35mm, 50mm, 85mm, 135mm, and 150mm, making it suitable for portrait, travel, landscape, and event photography where versatility and consistent optical performance are required.