Focal length

09.04.08
Coaster-sized origami-optics lens boosts focal length, shrinks photog egos
09.04.08

Coaster-sized origami-optics lens boosts focal length, shrinks photog egos

Sports photogs aren't compensating for something by swinging gigantic, monopod-mounted lenses; they...

By T. Stevens,   09.04.08
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