You asked
Is the panasonic lumix g x 35 100mm f 2 8 ii good for portraits?
Yes, for portraits it's a good fit. On Micro Four Thirds, the Panasonic Lumix G X 35-100mm f/2.8 II frames like a 70-200mm on full frame, and f/2.8 gives about the depth of field of f/5.6 there. That's the reach that portraits recommends for tight headshots and soft backgrounds, with room between you and your subject.
It's stabilised and autofocuses, which helps when you're shooting people handheld. It works on a wide range of Micro Four Thirds bodies, including the OM System OM-1 Mark II, OM-5 Mark II and Panasonic Lumix G9 II. If you want a lens for people in general, pair it with a 50mm f/1.8 style prime for indoor work.
Written by Claude from this site's pages.