I'm looking for the optimal way to model the back part of this camera (just the back with the viewfinder) while having a good topology. The general shape is easy, but I can't get the viewfinder and the way it merges with the rest of the shape right. I've tried from sculpting to drawing it with a beizer to using a lattice, but it never looks right or the mesh ends all messed up. What would be the best way to do it?
My best attempt:
I got there using a subdivision modifier and adding support loops and creases. Then I joined it with the viewfinder (a separate mesh) using a boolean modifier.
But the mesh is a mess. Is it a good approach? Is it worth fixing the mesh?
The bottom-line is that no matter what I try, I can't get this curves right: