Voigtlander 40mm f1.2 Nokton Aspherical Lens - Canon RF Mount

No, the Voigtländer Nokton VM 40mm f/1.2 is a fully manual focus lens. It requires you to adjust focus by hand using the focus ring.

The closest focusing distance for this lens is 0.18 meters (18 cm).

The lens uses a 46 mm filter size.

Yes, the lens features electrical contacts that communicate EXIF data such as aperture settings to compatible Canon RF mount cameras.

The large f/1.2 aperture allows for more light to enter the lens, enabling shooting in low light conditions and creating a shallow depth of field for artistic blur (bokeh).

The two double-sided aspherical elements help to correct optical aberrations, resulting in sharper images with better clarity and contrast, especially at the edges of the frame.

The lens has a diameter of 6.08 cm, a length of 43.3 mm, and weighs approximately 315 g.

Ensure the lens is securely mounted. Check for dirt on the electrical contacts of both the lens and the camera mount. Update your camera's firmware.

Verify that the lens's electrical contacts are clean and making proper contact. Ensure EXIF communication is enabled in your camera settings. Try re-mounting the lens.

Confirm you have achieved critical focus manually. For maximum sharpness, avoid shooting wide open at f/1.2; stopping down slightly to f/1.4 or f/2 will often yield sharper results, especially towards the edges.

Ensure the aperture ring on the lens is set to the desired f-stop. The camera body typically does not control the aperture on this manual lens.