Sigma 30mm f/1.4 DC DN Contemporary Lens - Canon M

No, the Sigma 30mm f/1.4 DC DN Contemporary lens is designed for APS-C sensor mirrorless cameras. When used on a full-frame camera, it will cause significant vignetting or may not function correctly.

'DC' indicates the lens is designed for cameras with an APS-C sized sensor, and 'DN' signifies that it's optimized for mirrorless cameras with a short flange back distance.

Yes, the lens features a stepping motor that provides fast, quiet, and smooth autofocus, making it highly suitable for video recording.

Use a soft microfiber lens cloth to gently wipe the elements. For tougher spots, apply a small amount of lens cleaning fluid to the cloth first, then wipe. Avoid touching the glass with your fingers.

The filter thread size for this lens is 52mm.

This lens does not have built-in optical image stabilization. Image stabilization relies on the camera body's stabilization features (if available).

The minimum focusing distance for this lens is 0.3 meters (approximately 11.8 inches).

Ensure the camera's firmware is up-to-date. Clean the lens contacts and camera mount contacts. Try switching between autofocus and manual focus modes to reset the system. Check if the focus mode is set correctly on the camera.

Verify that the lens mount type matches your camera's mount. Ensure no debris is obstructing the lens or camera mount. Check that the lens release button is not stuck.

Confirm you are using an appropriate shutter speed for handheld shooting. Check that the focus point was accurately placed on the subject. Ensure the lens is clean and free from smudges. Experiment with slightly stopping down the aperture (e.g., to f/2.0 or f/2.8) if extreme sharpness is needed at the edges.

Remove and remount the lens, ensuring it clicks securely into place. Clean the electronic contacts on both the lens and the camera body. Try the lens on a different compatible camera body if possible to isolate the issue.