You asked

Panasonic lumix s pro 70 200mm f 4 ois vs leica vario elmarit sl 70 200mm f 2 8 asph?

Both are stabilised 70-200mm zooms on L-Mount, so the choice comes down to aperture. The Leica Vario-Elmarit-SL 70-200mm f/2.8 ASPH gives you the faster aperture. That matters for portraits, where it gives tight headshots and strong background blur, and for sport and wildlife in dim light.

The Panasonic Lumix S Pro 70-200mm f/4 OIS is my pick for most people. The landscape advice still applies: you'll mostly shoot at f/8 to f/11 anyway, and f/4 zooms are lighter and cheaper than f/2.8 versions. If you shoot mainly outdoors in good light, this is the sensible buy.

Written by Claude from this site's pages.

From these pages