Standardiobjektiivi

Standardiobjektiivi, often referred to as a normal lens or standard prime lens, is a type of photographic lens that has a focal length that closely approximates the diagonal of the camera's sensor or film frame. In the context of 35mm film or full-frame digital cameras, this typically means a focal length of around 50mm. This focal length is considered "standard" because it mimics the perspective and field of view of the human eye.

The primary characteristic of a standardiobjektiivi is its natural rendering of perspective. Unlike wide-angle lenses that exaggerate distances or telephoto lenses that compress them, standard lenses show the scene with a perspective that is familiar and less distorted. This makes them versatile for a wide range of photographic applications, including portraiture, street photography, documentary, and general everyday shooting.

Standardiobjektiivit are also known for their sharpness and often have relatively wide maximum apertures. A wide aperture, such as f/1.8 or f/1.4, allows for shooting in low light conditions and for achieving a shallow depth of field, which can effectively isolate the subject from its background by creating a blurred effect known as bokeh. Their simpler optical design compared to zoom lenses often contributes to their optical quality and affordability. Due to their versatility and natural perspective, standardiobjektiivit are a fundamental lens for many photographers.