Quote:
Originally Posted by jar_e
With the "star" like effect? Suprisingly...nothing. I believe that it was produced via the plastic cover over the light and that's how the light is reflected out...creating a nice, symmetrical, star-like pattern. Nothing was used (ie. filters, photoshop) in that regards. The shutter was opened for 5-30 seconds (I forget which one I used for that shot) and it produced it very nicely.
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Its caused by light diffracting at the edge of the aperture blades. So basically, you'd open the aperture wide open to reduce the affect