zoom lock: Tamron for Nikon AF28-200mm Super
I'm a newbie getting back into photography and don't know much about
AF lenses. I got a Tamron AF28-200 Super LD Aspherical (IF) on the internet. Its in great shape but has no instructions. The lens is locked on 28mm and I don't know how to unlock it. Manuals I can find on the net always picture newer versions of the lens that have a cleaerly marked zoom lock/unlock button.
Anybody know how to unlock the zoom on this model Tamron. (Its Model 171DN, byt the way.)
Thanks for your kindness in helping me out.