Why does the 28mm lens make a sound when shaken?

When powered off, it’s normal to hear a sound when shaking the lens. This noise is caused by the new VCM motor design, which works similarly to the camera's CMOS stabilization. The sound can occur even when the camera is not powered on.

What are the proper usage instructions for the Viltrox 28mm lens?

1, Always open the built-in lens cap before turning on the camera.

2, Make sure to press the quick button to fully open the lens cap before use.

3, Avoid interfering with the lens during the autofocus calibration process after powering on.

Does this lens work with the Sony NEX series camera?

No, the 28/4.5 FE lens can't work with the NEX series cameras.

What should I do if the autofocus is not working?

If the autofocus function does not activate, ensure that the lens cap is fully opened before powering on the camera. If the lens cap is not open, the camera may fail to calibrate the lens properly, preventing autofocus from working.

Is there any way to put filter on this lens?

This lens does not support external filters