I sat down today with an art therapist friend and took a few shots during an exchange - a couple of shots at different distances. They don’t have the same colour balance but this example is mainly to see the sharpness and ease of focusing or otherwise. Ideally, I would have placed one AD200 to the left but this was a spontaneous event. Overall, I would say I’m very pleased with the performance of this lens ( Mitakon 65mm f1.4 ). I’m also pleased it’s got a GFX mount. The lens is already a little heavy but that has never really bothered me. But another adapter would just make it heavier. Prior to this (ten years back) I was happy to walk around with a Canon 100-400mm all day in the landscape. I’m very much focused on the image results so don’t care much about weight issues. My final test will be to take a full body shot at some distance to see how much separation can be achieved. Let’s see…