I love my A7R3 but I am on the fence about investing in the gm lens. I recently did an event and was disappointment with the results that i got with regards to focusing using the canon lens. The canon 70-200 mmf2.8 ii is my work horse but at 200mm it fail royally. Im thinking about selling my 1dx mk1 and buying the Gmaster 70-200, before i sell , is there anyone on this forum that has solved this problem?
Thanks










