Believe it or not, there was a time, some OD’s didn’t give a rip if you didn’t buy glasses from them. They gave solid advice, offered best design options on their patents visual needs, and X was the...
I don't like the idea, but I am using a lot of standard PALs for task, too. It's a cheaper option, sometimes. It gives a wide screen panorama. Use +0.50 for an "indoor PAL" effect or +1.00 for a...