Today’s B&H DealZone (one-day deal) features a terrific deal on the Sigma Contemporary 150-600mm f/5-6.3 DG OS HSM for Canon — it’s only $729.00, and you get a free Sigma USB dock. B&H is also discounting several popular Ruggard dry cabinets.
UPDATE: Unfortunately, the free dock was removed.
These deals are today only (or until sold out).
I don’t see the free dock
The free dock was there when the deal started at midnight, but it looks like it was removed shortly after.