Portrait focal length lenses with wide maximum apertures will always be popular, but they can also be quite expensive, easily running about $2,000 at the top end of the spectrum. The TTArtisan 90mm f/1.25 offers that classic combination at a much more affordable price, making it an attractive option for a wide range of photographers. This excellent video review takes a look at the lens and the sort of performance and image quality you can expect from it in practice.