I use one in my infrared converted E-P2. When I got it I only had one full size SD card in my E-M1 but had a couple mSD cards laying around, so I threw a 4GB in the E-P2 via adapter and it works fine. The only hiccup is sometimes when I first put it back in the camera, the camera does not see it, but reseating it always fixes the issue and until the next time I remove it, I have never had any issues with it while in use suddenly being not seen or anything like that.Has anyone used micro SD cards with adaptors in their Mu-43 cameras?
Even though I now have a spare full size SD card I could throw into that camera, I have been using the mSD card in it for years now so I have just left it. That camera only gets limited use anyway so no need for high capacity cards. Also I don't shoot video with it.