USED Cosina Voigtlander NOKTON 40mm F1.2 Aspherical (for Canon RF)

Product Features

• A large-aperture manual focus lens exclusively for the Canon RF mount. Covers a full-frame image circle, with optical design optimized for the Canon R system camera's image sensor.
• Designed to project the lens's inherent performance as an image, without relying on electronic lens optical corrections within the camera.
• Equipped with electronic contacts for electrical communication between the lens and the camera body. When combined with Canon EOS R system bodies, it supports Exif information, in-body image stabilization (3-axis), and three types of focus assist functions (magnified view, peaking, focus guide).
• The lens construction consists of 8 elements in 6 groups, with two double-sided aspherical lens elements. Despite its compact size, it achieves an astonishingly large F1.2 aperture for a 40mm full-frame lens. Enjoy optical performance that can be used with confidence from wide open, and smooth, large bokeh.
• The 40mm focal length corresponds to 60mm on APS-C size cameras, making it highly versatile for use as a standard lens on both full-frame and APS-C size bodies.
• The minimum focusing distance is 0.3m, and focusing is manual focus only. The metal focus ring features a diamond pattern for excellent grip.
• Aperture is mechanically controlled directly by the aperture ring, adjusted on the lens itself rather than the camera. The aperture ring has a click switching mechanism, allowing for stepless aperture adjustment without clicks, ideal for video shooting or fine adjustments of depth of field. The aperture has 10 blades.
• A dedicated metal lens hood is included.

Product Specifications

• Focal Length: 40mm
• Aperture Ratio: 1:1.2
• Minimum Aperture: F22
• Lens Construction: 8 elements in 6 groups
• Angle of View: 54.9°
• Number of Aperture Blades: 10
• Minimum Focusing Distance: 0.3m
• Maximum Magnification Ratio: 1:4.9
• Maximum Diameter × Length: φ70.8 × 56.4mm (excluding protrusions etc.)
• Filter Size: φ58mm
• Weight: 400g
• Aperture Ring: Manual aperture, equipped with aperture click switching mechanism
• Electronic Contacts: Equipped <Lens hood included>