If you want to create awesome effects without having to spend any extra money on equipment, check out this video. It will show you how to fog your lens using a no-cost, low-tech technique that everyone can easily try. The result is a softening effect that gives the illusion of a glow across the lens. This becomes a diffusion process that helps your photos tell a story. The video demonstrates this technique through an actual short photo shoot. You’ll be amazed at the effects you can create as you’re shooting photos, rather than having to generate them during the post-processing phase.
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I’ve been using this technique since 1965 plus a few others.