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enter image description hereenter image description hereenter image description hereI am beginner. Recently bought a second hand Tamron 70-300mm tele-macro lens (model 572D) for nikon d5200. Its manual says it has AF-MF switch, but there is no switch I can see on it except normal/macro switch. I have attached the picture of lens model so please help to get autofocus working on it.

  • Sorry its just my pictures are duplicating and i am trying to removing it. – Razin Jul 1 '15 at 11:57
  • Only two images – Razin Jul 1 '15 at 12:00
  • You made it =) +1 for the effort – null Jul 1 '15 at 12:03
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To quote from the 572D manual:

Automatic Focusing (for Nikon/Minolta/Pentax AF SLR)

When the camera is on the autofocus mode, the lens focuses automatically.

Digging a little further, this thread confirms my suspicion that the Tamron lens doesn't have a built in focusing motor, but instead uses the screw drive motor which exists on higher-end Nikon bodies:

Google helped me find a forum note that the D3000 needs a version of the lens with a built-in motor

As such, this lens won't autofocus on your camera as the D3x00 / D5x00 series don't have the screw drive motor.

  • So does it mean that i have to manually focus everytime when i take pics? and also why there is no switch on lens as in manual it shows it has af switch – Razin Jul 1 '15 at 12:10
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    Yes, and the AF/MF switch exists only for the Canon variant. – Philip Kendall Jul 1 '15 at 12:25

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