You asked
Is the panasonic lumix s 20 60mm f 3 5 5 6 good for portraits?
Here is what the site says about that.
From Panasonic Lumix S 20-60mm f/3.5-5.6: Panasonic Lumix S 20-60mm f/3.5-5.6: A zoom lens by Panasonic for Full frame cameras, 20-60mm f/3.5-5.6. A kit zoom that starts at a genuinely wide 20mm. Specs - Maker: Panasonic - Focal length: 20-60mm (zoom) - Maximum aperture: f/3.5-5.6 (it gets darker as you zoom in) - Made for: Full frame sensors - Mounts: L-Mount - Stabilised: no - Autofocus: yes What it frames like - On full frame (L-Mount): as marked, 20-60mm. - On ...
From Portraits: Portraits: For portraits, the lens matters far more than the camera. A cheap body with a good portrait lens beats an expensive body with a kit zoom every time.
Quoted from this site's pages.