Voigtlander 10mm F5.6 VM Mount Ultra-Wide-Heliar Lens - Voigtlander

This lens is designed for full-frame cameras with a VM mount. It can also be used on crop-sensor cameras or other mirrorless systems with the appropriate adapter, though the field of view will change.

No, this is a manual focus lens. You will need to adjust the focus ring by hand.

Engage the selective iris control by moving the aperture ring to the desired position to de-click it. Then, rotate the ring smoothly to adjust the aperture during recording.

The minimum focusing distance for this lens is 30 cm (approximately 0.98 feet).

Use a soft, lint-free microfiber cloth. For tougher spots, use a small amount of dedicated lens cleaning solution on the cloth, not directly on the lens. Avoid touching the glass with your fingers.

Yes, you can use it on a crop-sensor camera with the correct adapter, but the effective focal length and angle of view will be narrower.

Ultra-wide refers to the extremely wide angle of view. Heliar is a classic optical design by Voigtlander known for its excellent performance, particularly in sharpness and contrast.

Ensure the correct mount adapter is being used and that it is properly seated on both the lens and the camera body. Check for any debris on the mount surfaces.

Verify that the focus ring has been adjusted correctly. Use your camera's focus peaking or live view magnification to achieve critical focus. Ensure the aperture is not stopped down so far that diffraction becomes noticeable for your specific subject.

If the aperture ring is stiff, especially when de-clicking, ensure the de-click mechanism is fully engaged or disengaged as intended. If the stiffness persists, contact customer support.