Lumix 20mm f2.5 vs Viltrox 20mm f2.8 - More for Less or Less = Less?

Description

One week after Panasonic announces the Lumix S 20mm f/2.5, Viltrox goes and launches their 20mm f/2.8 in L-mount (along with three other AIR lenses) - should you pay $500 for the Lumix or save a load with the less than $200 Viltrox? Check out the Panasonic Lumix S 20mm ƒ/2.5 https://geni.us/2vTFT