Sigma EX 50-500mm f4.5-6.3 APO HSM OS for Nikon F process_ECN-2 Colour Boards are third party unless

Boards are third party unless otherwise specified

Decent focusing action

with smooth focusing and clean optics

This is the fancy Impulse

Which means that you can aim your flash straight up

Sigma EX 50-500mm f4.5-6.3 APO HSM OS for Nikon F process_ECN-2 Colour Boards are third party unlessThe Sigma EX 50 500mm f4. 5 6. 3 APO HSM OS is the famous "Bigma" lens, with a huge 10x telephoto zoom range (and a correspondingly huge size.) This is not an easy lens to handhold, but it has a generous handgrip on the tripod foot and an optical stabilizer to give you a good shot at it, anyway. In excellent condition, with hood, hood extender for APS C, and case.