This was important for survival back when we weren’t established apex predators yet, as tiny movements at the edge of our vision quickly alerted us of potential danger and put us on high alert to deal with the potential threat. However, it is not very efficient, so it isn’t as sensitive as the peripherals, which can detect movement exceptionally well. Our focal vision is tiny by comparison to our peripheral but is what we use to really see the world in detail.
See, our eyes have two forms of vision, focal vision and peripheral vision. To answer why people use the blurred background technique, I need to explain a bit about the anatomy of human vision. How to Turn on the Background Blur Effect in NVIDIA Broadcast.How to Achieve a Shallow Depth of Field Effect with your Camera.Option 1: Shallow Depth of Field With a High-end DSLR Camera.How to Blur The Background Without a Green Screen.
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