First I am going to check out if the codes which are sent from the Bluefin to the camcorder are the same. I think they are but I will try it out with a GX still in the store.
Secondly I want to know if the output to HDMI will work when in recording 4K mode, which is relevant for me with my external monitor. I will try this out also in the shop.
Thirdly, the lenses should be the same size and on the same spot, otherwise you will get a round circle around the clips. I will try to check it in the shop, by aiming both cameras at each other on a even ground. This must be rechecked though after inserting the GX in the house.
Last, will it fit?
I am going to a shop on march 31 and will let you know.
I suspect that the size it too big, but lets wait and sea,
Ronald