Is the sigma 100 400mm f 5 6 3 dg dn os contemporary good for portraits?

It's not my first pick for portraits. This is a telephoto zoom, and its f/5-6.3 aperture gets darker as you zoom in, so you'll struggle to get creamy backgrounds or work in dim light. Portraits come down to the lens more than the body, and this one is built for reach. It can work for candid shots or portraits from a distance, where its 100-400mm range gives you a lot of compression. For close, detailed portraits, look for a faster prime or a shorter, brighter lens instead. The portraits guide explains what to look for, and if you want to see what this zoom is really for, the wildlife and sport guide covers it well.

Written by Claude from this site's pages.