You can connect a mirrorless camera to iPad with USB. iPhone doesn’t support that yet (hopefully in the future).
Your iPad with a USB camera is a super powerful and portable setup for recording and streaming. You’ll have all the features we have in our app, but then with your mirrorless as camera.
Read this blog post to learn more about turning your iPad into a Professional Video Studio: https://detail.co/blog/pro-ipad-video-setup