I used this Canon EF to MFT adapter with my JVC LS300 but works well with the Panasonic GH5 (Checked today).
I no longer have my JVC LS300 which is why I am selling this adapter for less than half price. It’s in pristine condition, with original Metabones plastic box.
Send me an email if you are interested to firstname.lastname@example.org
Note. Postage will be added to the price but will depend on where it is being posted too.