There's a multitude of emulsions available, even after a lot of them have been discontinued. Each one reacts a little differently to light, both in terms of requiring more or less light, but also in terms of reacting in various unique ways to light.
What really matters?
Some thoughts based on a conversation I had with a friend quite a few months ago.
Dona bending over
Dona bending over with a stick... artistic from the front, probably really trashy from the back.
Trashy pic
An example of how clothing does not save a picture from being trashy.
Where we were - the San Mateo Bridge
The San Mateo Bridge. While we were talking, Emily was taking a bunch of pictures. I only took one. I carefully evaluated metering and decided this was really the picture I wanted to take.