Help: Sigma 10-20mm DCHSM Nikon

Evening all, quick question does any one have a Sigma 10-20mm DCHSM Nikon??

Ive just bought one fitted it to my Nikon d3200 and the Autofocus works fine but then thought where the hells the Auto / Manual focus switch????

help

Its a manual overide isnt it? And you can always set mf in camera also
 
For some reason that I can't fathom, sigma seemed to omit the af switch on some of their nikon models. Was the same on a couple of their macro lenses too. Quite frustrating when using a lower end body as manual focus is a menu job rather than a quick switch.
 
For some reason that I can't fathom, sigma seemed to omit the af switch on some of their nikon models. Was the same on a couple of their macro lenses too. Quite frustrating when using a lower end body as manual focus is a menu job rather than a quick switch.

It is because nikon has motors in the lens and thus has a easier over ride system. If you have a high end body you get a switch on the body but as you said lower end means less switches
 
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