It is totally compatible with the two APS-C and full-frame DSLRs. Broadly, we anticipate long telephoto zooms to become big and awkward. This past year, however, Sigma bucked this trend

Together with the Lumix GX9, Panasonic has listened to its own users and created a rangefinder-style mirrorless camera which many will watch as a real successor to this much-loved GX7.