Very good95/100
... In the centre of the image, the measured values for resolution and contrast are high at 10 mm and still very good to good at 20 mm (open/ stopped down). Conversely, at 10 mm we measure a relevant but absolutely acceptable edge drop, which drops significantly at 20 mm. Once again: stopping down hardly changes the measured values, f/8 provides the biggest plus in contrast at the edge of the image...
