20mm F2.5

I had a chance to test out the new Panasonic Lumix S 20mm F2.5 prime lens on my Lumix S9 ahead of launch. Joining the 18-40mm zoom and 40mm F2, this is the third entry in Panasonic’s compact prime/zoom series. While optical performance isn’t as premium as larger S-series primes like the 18mm F1.8 or…