The Nikon F-401X is a single lens reflex camera. It is the successor F-401S and was introduced in the early 90s. As a target group, newcomers were targeted by the Japanese company. The lenses of the Nikon F-401X can be changed. It features a Nikon F lens mount. Often you will find the 35mm camera with the AF Zoom-Nikkor 35-70 mm f/3.3-4.5 lens. The Nikon F bayonet was developed in the 1950s. Over the years, the lens mount has been refined and improved by Nikon. Other makers of compatible lenses include Sigma, Tokina, Tamron and Samyang. But beware, not all modern camera lenses can be used with the old cameras Focusing is made easier by the built-in autofocus.