Rubbish Experiment

How tricky could it be? That's what I thought. I had two glasses I was chucking out and a slice of studio background paper. 20 frames a second should do it. Got the focus wrong first time and the shutter too slow the second (and probably first). I also think the A9 works faster with just one card in as I think the second slot slows it down. Hmmm.... must find more glasses.