I shoot Canon so I'm not familiar with your camera but that's a single focus lens so there is no "zoom."
It has a focus ring to focus but to "zoom" you'll need to physically move yourself further from, or closer to, your subject. To switch between manual and automatic focus you push or pull the focus ring. Toward the body is MF, toward the end of the lens is AF. There is also a limit switch to help AF work faster. If you're focusing on a macro subject you should switch it to "full."
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Doug - v2.0.4
Nuclear winter solves global warming.
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