Samyang 135mm F1.8 AF Full Frame Auto Focus Telephoto Lens for Sony E Mount Cameras, Black, (SYIO13518-E)

Fast & quiet AF and well-controlled breathing for shooting video Focus Hold Button - Pressing this button on the lens will keep the lens locked to that focusing distance. You can assign functions such as Eye AF in settings on the camera body. Custom Switch - There is a custom switch, which can be set to allow adjustment of the aperture silently by rotating the focus ring. Using the optional Lens Station, you can set up the mode to suit your own preference. The Focus Range Limiter only operates in AF mode. It is useful when the distance from an object has been determined. Move the Focus Range Limiter forward or backward to select the focus range. - FULL: The AF range is set to infinity at a minimum focus distance of 0.69m. (AF search may take slightly longer.) - 0.69m - 2m: The AF range is set between 0.69m and 2m, which is suitable for close-up shooting. - 1.5m - ∞: The AF range is set from 1.5m to infinity, which is suitable for normal shooting. 11-Blade Diaphragm