Last time I used my Rolleiflex 3,5f I didn't wear spectacles. Ten years later, I'm wearing bi-focal glasses and find it so difficult to focus using my split-image focussing screen. I have started to question of my negs at infinity because of this and don't know what's the best way to achieve the sharpest results. Any opinions out there? I've attached a sample of my Rolleiflex 3,5f work developed a few weeks back.