QUOTE(JenStewartPhotography @ January 4 2007, 01:27 PM) [snapback]41194[/snapback]
I love these! If you don't mind me asking, how did you get the engagement photo? I've seen several photos that seem to use a similar technique. How the subject is in focus and the background seems to be blurry and even often time almost "spun" is this a special lens, or shutter technique or what? Either way I LOVE it!
That particular image was not rear-curtain synced - which really isn't even necessary when you're spinning an image. The only time you really need rear-curtain sync is when you're capturing something in an obvious directional movement- like capturing a car or runner on the end of the frame rather than the beginning. In most cases, when you can fake a direction and when you want to employ panning, spinning, and zooming with a dragged shutter, it's easiest to compose the image the way you want it and flash on the front end and use the dragged shutter time to put motion into the ambient lighting (dancing is a good example of this, since it's often a back & forth motion rather than directional).
To achieve the effect in the engagement image, I framed the image under neon lighting which was already shaped in such a way that it gave the image motion. Then with a slow shutter of around 1/15-30th and no flash, I twisted the camera as I pressed the shutter... as demonstrated by Turtle Nate here...
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The key to this is to recognize that the center of the lens will receive the least amount of distortion, while the outside of the frame will receive the most distortion (just like how it feels to stand in the middle of the merry-go-round as opposed to hanging off the edge).