For the last several years, if you were an L-Mount user looking for a super telephoto lens, Sigma was your only option (or a Leica version of a Sigma lens). Now Panasonic has introduced their longest full frame lens yet, with the Lumix S 100-500mm f/5-7.1 OIS. It’s compact and light, but also slow and expensive. Is there a place for this $2,100 lens in the L-Mount lineup? Let’s find out.
