It eventually happens to every new photographer. You’re out in the field. You’re setting up to make a shot, and you see others around you setting up for a shot, only, some of these people have these strange contraptions attached to the front of their lens. It looks like a huge piece of square glass. You sit there. You stare. You wonder. And when you get back home, you Google ‘square things on lens.’ The first time this happened to me, I was set up to shoot some images of Bonsai Rock in Lake Tahoe, California several years back.
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