This Vivitar zoom lens is a high-quality addition to your Olympus camera. With a maximum aperture of f/3.8, it allows for great low-light performance and beautiful bokeh. The lens is compatible with Olympus OM mount cameras and has a focal length range of 70-150mm, making it perfect for capturing distant subjects. The focus type is manual, allowing for more control over your shots, and it is made with durable aluminum exterior material. This lens is a great choice for anyone looking to take their photography to the next level.