The NOKTON 40mm F1.2 Aspherical is a large aperture manual focus lens exclusively for Canon RF mount. Covering a full-frame image circle, the lens is optimized for the image sensor of Canon R system.
The lens captures the image directly by excellent optics without digital alteration. The lens is equipped with electronic contacts and has data communications with the Canon body. In addition to Exif information and in-body image stabilization (3-axis) *1, three types of focus support functions (magnification, peaking, and focus guide *2) are supported.
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 for a full-frame 40mm lens.
The lens offers reliable optical performance at all apertures and a smooth pleasing bokeh effect wide open. The angle of view of the 40mm focal length is equivalent to 60mm on an APS-C size camera, meaning that the lens is very versatile for both full-frame and APS-C size cameras.
The minimum focusing distance of this lens is an amazing 0.3m. The silky-smooth focusing of a high precision metal helicoid, is aided by an engraved diamond pattern which provides a secure grip for the user and extremely accurate focus.
A metal aperture ring has a click-switching mechanism that allows the aperture to be used without click-stops when shooting video. The aperture has 10 diaphragm blades, which allow the photographer to capture smooth out-of-focus areas at the same time as sharp in-focus areas. A thread-mounted metal hood is included.
