Hi all,
We know that the main issue with 1:1 modes is the cropped preview. There is a stuff we can use to help when shooting especially moving shots: a director's viewfinder application on your smartphone.
https://imgur.com/gallery/FKXsh9NIt's easy by setting the smartphone near the camera to achieve a very similar liveview.
of course it will be not perfect due to the perspective. however
It will be usefull to follow a subject or whatever.
we can also use another camera but we need two cameras and two lenses !
https://imgur.com/gallery/oIlyN6C