Everyone is impressed that you can shoot 4K video and use the combo of IBIS and OIS (dual IS) on the GX85 with many Lumix lenses. But overlooked is the additional option of adding digital stabilization (EIS) to dual IS. In this video handheld shots are taken at the long end of the 35-100mm f3.5-5.6 Lumix lens (220mm eq.). First, dual IS (OIS + IBIS), then from the same exact spot, using dual IS + EIS. Notice there is a crop when the latter combo is used, but is there more stability or any loss in sharpness?

Panasonic GX85 4K Test Video: Dual IS vs. Dual IS + EIS on Vimeo

I did not notice any added stability. Though it's hard to make a precise judgement due to the change in FOV.

It seems that there is no apparent loss in detail with eis. again it's hard to be precise unless we'd use a res chart.