Do you know about the "Trinity prime lenses" for portrait photography?

Portrait of a woman in a purple dress reclining on a couch.

I've been a professional portrait photographer for over a decade – and learning about the "trinity primes" for portraiture changed how I used my camera.

If you've ever wondered why your people pictures don't quite look or feel right, there's a pretty good chance that you're using the wrong lens. Or perhaps, using the right lens in the wrong situation.