Sigma 300-600mm f/4 DG OS Sports Lens - Sony E

The minimum focusing distance is 2.8 meters at the wide end (300mm) and 4.5 meters at the telephoto end (600mm).

Yes, the lens features a dust and splash-resistant structure.

The lens uses a drop-in filter holder and accepts 40.5mm rear filters.

The aperture range is f/4 to f/22.

Yes, the lens features optical stabilization, providing up to 5.5 stops of correction at 600mm.

The lens uses a Sony E-mount.

The lens weighs approximately 3.97 kg.

The lens has 28 elements in 21 groups.

Ensure the lens and camera contacts are clean. Check the focus mode settings and try manual focus if necessary. Consider recalibrating the lens with your camera if issues persist.

Verify that the focus is accurate. Increase the shutter speed to avoid camera shake, especially at longer focal lengths. Check for any obstructions on the lens surface or filter.

Make sure the optical stabilization switch on the lens is turned on. Ensure the camera's image stabilization settings are compatible.

Ensure the lens is properly mounted. Check the camera's firmware and update it if necessary. Clean the lens contacts.

Lock the zoom ring when not in use or use friction adjustment if available.