READ: Shutter Speed
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Example of 1/250 shutter
This image I took at a wedding of a friend. I was using an external flash so I wasn't TOO worried about needing enough light. I wanted to get a shot of the bouquet in the air after the bride threw it and I wanted everything to be in focus. I bumped my shutter up to 1/250 of a second and captured this shot. You can see from the way the bride is turning around that her hair is a tiny bit blurry. If I had upped my shutter a tiny bit more, her hair would have been more crisp.