Here’s a 5-minute video showing a portrait lens shootout I recently did at 85mm f/1.4, 105mm f/1.4, 135mm f/1.8, and 200mm f/2.8. If you are looking for a portrait lens, you can’t go wrong with any of these focal lengths. Each focal length serves a specific purpose and will give you a slightly different look/perspective.
Without getting too technical, I found that there really isn’t much difference between all four lenses optically — the differences are... more