LensProToGo go through a few test on the new Canon 18-80 T4.4 CN-E.
First Checking the accuracy of Parfocal, then Flaring the lens, Checking breathing will rack focusing, taking a look at the bokeh and lastly seeing edge distortion and sharpness.
For more please see LenProToGo: https://www.lensprotogo.com/rent/prod…