I have an a77 and a7rII... the big boy... 40 megapixels... has no pop up flash... such a flash is great for filling in facial shadows... I wish Sony or someone would sell me a small camera-powered flash that would work through the hot shoe with an on off switch and be small enough to stay unobtrusive on the a7rM2 all the time... I don't want a big battery operated flash and don't need that much light... anybody seen anything like this?... a hot shoe flash as small as the pop-up? I'm betting there is a market and almost ready to find a manufacturer who will make one...