The filter thread size of Panasonic Lumix G Vario HD 14-140mm F4-5.8 OIS is 62mm.
Below are links to the filters that we recommend you to consider for your Panasonic 14-140mm F4-5.8 OIS:
Read our detailed Panasonic Lumix G Vario HD 14-140mm F4-5.8 OIS Review