The evolution of 4K cameras brings about an evolution in lens technology. Sony's 28-135mm f/4 FE PZ G OSS Lens is a wide-ranging zoom lens that works on your full-fram, APS-C or E-mount camcorder or still photography system (**-adapter necessary to fit camera mounts other than Sony). The 28-135mm features a powered zoom control, with zoom rotation direction reversal capability, and variable speed control. Focus noise is minimized through weight reduction of the focus element group and use of a linear motor.
The 28-135mm f/4 features independent control rings for zoom, focus, and iris (aperture). The focus mode can be switched from auto to manual by simply sliding the focus ring forward, maintaining control at all times. All three control rings have been engineered to provide the correct amount of torque for comfortable, responsive operation and the depth of the rings has been designed for optimal control.
By maintaining a constant f/4 maximum aperture throughout the zoom range, the 28-135mm offers consistent performance and is beneficial when working at longer focal lengths in low-light conditions. The Optical SteadyShot image stabilization system works to minimize camera shake by up to four shutter speed steps.