I think a cheaper solution would probably just be a depth sensing camera. Even a developer targeted Intel RealSense kit is only like $150. Consumer hardware could be much cheaper I imagine.
Once you have depth information integrated with a camera, then it should be pretty trivial to do background removal.
Whereas a 35mm f1.8 from Nikon is like $200 and whatever you mount it to is still going to need to do auto focusing and a bunch of other camera-y stuff to make it accessible to non photo geeks and then you’re going to need an off camera microphone so the entire call isn’t listening to your autofocus motor and...
Once you have depth information integrated with a camera, then it should be pretty trivial to do background removal.
Whereas a 35mm f1.8 from Nikon is like $200 and whatever you mount it to is still going to need to do auto focusing and a bunch of other camera-y stuff to make it accessible to non photo geeks and then you’re going to need an off camera microphone so the entire call isn’t listening to your autofocus motor and...