Powerful telephoto zoom lens. The EF 70-200mm f/4L USM is distinguished by its high image quality and is suitable for a variety of tasks. Its compact design and lightweight make it a practical travel companion. The professional L-series lenses are the flagship models in Canon's lineup and represent top-class EF precision optics. Each L-series lens is characterized by high performance, excellent handling, and strong protection against dust and moisture. The high aperture of f/4 is constant across all focal lengths, ensuring that the shutter speed does not change when zooming. A rigid front element makes it easy to attach polarizing or color filters, for example. A ring-type ultrasonic motor provides very fast and extremely quiet autofocus. Thanks to excellent holding torque, inaccuracies are avoided. Additionally, manual focusing is always possible without switching modes, allowing for sharpness adjustments without needing to turn off the AF function. The Super Spectra coating ensures excellent color balance and enhanced contrast, while also minimizing lens flare and ghosting—common issues caused by light reflecting off the camera's sensor.