A premium portrait lens with a wide aperture around f/1.4 often commands a high price, usually somewhere around $2,000. And while that wide aperture can be a fun and useful creative tool, you do not always need it to create great portraits. If you want to save money and don't want to carry around a bulky f/1.4 lens, check out this great review of the affordable and lightweight Sigma 90mm f/2.8 DG DN Contemporary lens.