SEPTON 40mm F2 Aspherical Z-mount Lens (Scheduled for Release April 2026)
The SEPTON 40mm F2 Aspherical Z-mount brings classic optical design to modern full frame mirrorless cameras, scheduled for release in April 2026. The versatile 40mm focal length sits comfortably between a wide angle and a standard view, making it a natural fit for street photography and everyday snapshots. With a compact length of just 32mm from the Z-mount face, it slips effortlessly into your bag for daily carry.
Inside, a seven element design builds upon the traditional six element Orthometar configuration by adding one aspherical lens element. This optical setup yields extremely low distortion for clean, natural lines across the frame while maintaining a bright F2 maximum aperture. A close focusing distance of 0.3 meters makes it ideal for tabletop photography and close-up detail work. The lens includes a dome-shaped metal screw-in lens hood with a 52mm front thread, designed to accept the same front cap whether the hood is attached or removed.
Integrated electronic contacts communicate directly with compatible Nikon Z bodies running current firmware. This connection passes full Exif data to the camera, enables three-axis in-body image stabilization, and activates three digital focus assistance modes: focus point color changing, focus peaking, and frame magnification.
SEPTON 40mm F2 Aspherical lens for Nikon Z mount, scheduled for release in April 2026. This compact full-frame lens uses a seven-element optical design based on a six-element Orthometer type design with one aspherical element, delivering an F2 maximum aperture while maintaining a compact optical system.
The lens offers extremely low distortion for natural rendering of straight lines. Its 40mm angle of view suits everyday use and semi-wide-angle photography, while the 0.3 m minimum focusing distance is suitable for tabletop photography. Overall length from the mount is 32 mm for the Z mount version.
Electronic contacts support Exif data, 3-axis in-body image stabilization, and three focusing assistance functions when used with a compatible Nikon Z body and current firmware: focus point frame color change, focus peaking, and magnified focus view.
Includes a compact dome-shaped metal screw-in lens hood. The hood has a 52 mm front thread, allowing the same front cap to be used with or without the hood.
