Tamron SP 45mm f/1.8 Di VC USD review – Curvilinear distortion

There isn’t really a great deal of curvilinear distortion to speak of, with just a hint of barrel-type curvature of straight lines along the edge of the frame. It will be more pronounced when using the lens at its closest focus distance, but for larger scale subjects it will hardly feature. The correction is very well managed, making the lens flexible in use.