The Case for a Single 50mm Over Two Primes for Portraits

The 35-vs-85 argument has been had a thousand times. What's actually worth pulling from this one: the 50mm argument isn't about splitting the difference, it's about not switching glass mid-shoot when your subject is already warmed up. If you're doing location portraits on a tight pack or running a one-body setup at a function, the 50mm earns its place not because it's the best at any one thing, but because it never forces you to stop.