Sony a7rv raw files not displaying on iPad photos app

[TonyPick]

Just purchased the  Sony a7rv camera but the raw files are blank when downloaded to my iPad and iPhone photos app ? I can view the raw files in the photos app when the memory card is connected but then show as a grey blank once imported in to photos app. 

[danardeng]

It's too early, A7Rv's RAWs are not supported yet from other than Sony's software (ImagingEdge for desktop and for mobile).
Surely soon they will be supported by Cameraraw (on personal computer) and lightroom (on iOS).
For native OS support you will probably have to wait a longer time.