One thing that always confuses me a bit when working with cameras in DAZ Studio is the correct setting of placement and focal length.
So, when I set up a cam and it is too far away from the main object in the scene I can either move the cam closer to the object or adjust the focal length until I get a good frame.
Same in the opposite direction. When the cam is too close I can either move it away or, again, adjust focal length.
My problem is that I never really know when to do what. I have searched the web about it and the only thing I found are descriptions what focal length is, but not how to use it, or which values are good for different needs.
Maybe some of you can give me some advices about it. How do I set focal length correctly (for different needs like portraits or full environment scenes)? And when is it better to move the cam closer or away from the main object?