Sony FE 135mm f/1.8 GM Fast Telephoto Prime Lens The Sony FE 135mm f/1.8 GM (SEL135F18GM) is a premium G Master series telephoto prime lens for full-frame E-mount cameras, ideal for portrait, wedding, event, and sports photography. It combines exceptional sharpness with creamy bokeh and fast autofocus performance. Technical Highlights: Focal Length: 135mm (202.5mm equivalent on APS-C), perfect for portraits with a natural perspective and strong background separation. Aperture: f/1.8 to f/22, with an 11-blade circular aperture for velvety smooth, natural bokeh, typical of G Master lenses. Optical Design: 13 elements in 10 groups, including 1 XA (extremely aspherical), 1 Super ED, and 1 ED element to minimize aberrations, coma, and flares. Nano AR coating reduces reflections. Autofocus: Four XD linear motors (two per focus group) for extremely fast, precise, and quiet AF, ideal for dynamic subjects. Supports Real-time Tracking and Eye AF. Focus limiter (0.7–2 m or 2 m–∞) and manual focus override are available. Close Focus: Minimum focusing distance of 0.7 m, maximum magnification of 0.25x, suitable for detailed close-up photography. Stabilization: No optical image stabilization (OSS), but compatible with in-body image stabilization (IBIS) on Sony Alpha cameras such as the A7 series. Design: Dust- and splash-proof magnesium alloy body (84.7 x 127 mm, 950 g) with aperture ring (de-clickable for video), two focus hold buttons, and an AF/MF switch. 82 mm filter thread and robust lens hood with a rubber gasket. Key Features: Image Quality: Outstanding edge-to-edge sharpness even at f/1.8, with minimal chromatic aberration and distortion. The bokeh is smooth and even, ideal for portraits or low-light photography. Users praise it: "The sharpest lens I've ever used!" Handling: Ergonomic controls, including a tactile aperture ring and a precise focus ring. Despite its weight, it's well-balanced on cameras like the A7R V. Versatility: Perfect for portraits, weddings, sports, or studio photography. The fast aperture and rapid AF performance also make it suitable for video recording, with minimal focus breathing. This lens is ideal for professionals and ambitious photographers looking for a fast, high-resolution telephoto prime lens with exceptional image quality and precise autofocus.