Greg from LensProToGo goes through a few tests on the new Sigma 20mm, 24mm, 35mm, 50mm, 85mm, T1.5 Cine Prime Lenses, on a RED Scarlet W camera in 5K.
First checking breathing while rack focusing, taking a look at the bokeh, Flaring and lastly seeing edge distortion and sharpness.
To try these lenses at LenProToGo: https://bit.ly/2rYHTgM