Tamron 50-400mm F4.5-6.3 Di III VC VXD Lens - Nikon Z Mount

The filter size is 67 mm.

While the lens has some weather-resistant features, it's not fully weather-sealed. Use caution in extreme weather conditions.

Yes, but the effective focal length will be different due to the crop factor of the camera. The angle of view will be equivalent to a 75-600mm lens on a full-frame camera.

Firmware updates are typically performed through the camera body. Refer to your camera's manual for specific instructions.

The closest focusing distance is 0.3 meters.

VC (Vibration Compensation) is Tamron's image stabilization technology. VXD (Voice-coil eXtreme-torque Drive) is Tamron's autofocus motor, which provides fast and precise focusing.

Ensure the lens is set to autofocus (AF) on the lens barrel and that your camera is set to a focusing mode. Clean the lens contacts on the lens and camera body. If issues persist, try manual focus.

Make sure the VC switch is on and that the camera settings are correctly configured for image stabilization. If the problem persists, check for any firmware updates for your lens and camera.

Remove and reattach the lens, ensuring a secure connection. Clean the lens contacts. If the problem persists, consult your camera or lens manual for specific error codes or contact Tamron support.