This week is our Photokina 2018 round-up featuring Canon’s EOS R full-frame mirrorless camera and new RF lenses, the Lumix S1 and S1R full-frame mirrorless range from Panasonic, Sigma’s new lenses including a new 70-200mm f2.8 and their new 56mm f1.4 for APS-C sensors, Fujifilm’s...