Is anyone using a 430EXs and a430EX and eventually a fourth, maybe a 580EX. If the Sigma is a good performer it could save me a bit and get me there sooner.
T3i, Tamron 17-50mm f/2.8, 70-200mm f/2.8 L, Sigma 30mm f/1.4, 430ex (x2), 580ex 13.3" MacBook Pro (late '11 model) w/8GB Ram & 1TB HD, Aperture 3 & Photoshop Elements 9
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