Fan alert: Chat live with Bob online at starting at 5 p.m. ET!Low fences, low ARMCO and raised fan viewing areas in several key locations combine to offer a number of interesting photographic opportunities for fans at Sebring.Pro photographer Bob Chapman gives veteran advice on where fans can take the best shots at Sebring this weekend.With little more than a digital SLR camera body, a 70-200mm (or similar zoom) lens, a memory card, and a willingness to explore the track, budding motorsport photographers can leave the Mobil 1 12 Hours of Sebring with literally hundreds of dynamic on-track photos.

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