The previously-delayed Sigma 120-300mm f/2.8 DG OS HSM lens has a newly listed ship date of May 15, 2013. It’s $3600, but it’s a constant f/2.8 throughout the zoom range. It is a beast of a lens. Hit the links below for more details.
Sigma 120-300mm f/2.8 DG OS HSM Shipping in May
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