What is a defining characteristic of a telephoto lens?

A telephoto lens is defined by its ability to capture distant subjects while providing a narrower field of view compared to standard lenses. This characteristic allows for finer detail capture at a distance, making it particularly useful for wildlife photography, sports, or any scenario where the photographer cannot get too close to the subject. Telephoto lenses typically have longer focal lengths, which compress perspective and create a pleasing background blur, or bokeh, enhancing the subject's prominence.

While some telephoto lenses may also include stabilization features or come in fixed or zoom variations, the key characteristic that sets them apart is their ability to provide a narrow viewpoint while capturing intricate details from afar. This unique combination makes them a valuable tool for photographers looking to isolate subjects and highlight details without interference from the surrounding environment.