The NOKTON 40mm F1.2 Aspherical is a large aperture manual focus lens. Covering a full-frame image circle, the optical design is optimized for the image sensor of the Nikon Z system cameras. The lens construction consists of eight elements in six groups, two of which are double-sided aspherical lenses. Despite its compact size, the lens achieves an astonishingly large F1.2 aperture. The lens offers reliable optical performance from maximum aperture and gentle very out-of-focus bokeh effect. This lens is equipped with electronic contacts and realises communications between the lens and the body. In addition to Exif information and in-body image stabilization (3 axes), by combining with a body compatible with communications and the latest firmware*1, three types of focusing support functions ( [1] focusing by colour changing of the focus point frame [2] peaking function focusing and [3] focusing with the enlargement button) are supported. A 10-element aperture is used to make the opening formed by the diaphragm blades closer to a circular shape. Out-of-focus areas are rendered naturally, and point light sources are rendered with a soft, rounded bokeh effect. The angle of view of the 40mm focal length is equivalent to 60mm on an APS-C size camera, making it a versatile lens that can be used as a standard lens on both full-size (Nikon FX format) and APS-C size (Nikon DX format) cameras.
