Just posted: Sigma 500mm f/4 DG OS HSM Sports Lens Review
Find out how well this big, beautiful lens performs!
The Sigma 500mm f/4 DG OS HSM Sports Lens
is in stock at: B&H
BTW, the tripod shown here is a Really Right Stuff TP-243 Ground-Level Tripod
. It is a compact, rock solid support that does not flinch at even lenses bigger than this one.
The tripod head is a Wimberley Tripod Head II
. It is ideal for lenses such as this one.