Panasonic Lumix G Vario 100-300mm f/4-5.6 II Power O.I.S. Lens - Panasonic

This lens is compatible with Micro Four Thirds (MFT) cameras from Panasonic and Olympus.

Yes, it features POWER O.I.S. (Optical Image Stabilization) to reduce camera shake.

It provides a 200-600mm equivalent focal length on a Micro Four Thirds camera.

Yes, it has a splash and dustproof construction.

The closest focusing distance is 1.5m, so it is not designed for extreme macro photography.

The filter size is 67mm.

Yes, the lens has autofocus capabilities.

The lens is made in Japan.

Ensure the lens is set to autofocus mode on both the lens and camera. Clean the lens contacts and check if the lens is properly attached.

Make sure your shutter speed is fast enough to avoid camera shake, especially at longer focal lengths. Check your focus and use the O.I.S. feature.

Check if the lens is properly mounted on the camera and clean the contacts. Try restarting the camera.

If the dust is excessive, consider professional cleaning. Otherwise, try to avoid opening the lens in dusty environments.