Macro lens for Nikon 3200?

So I am looking for a nice macro lens for my nikon d3200. And I'm just wondering if its worth it to save up for a nice $400 or more lens(from the Nikon website) or if this one is okay?
http://www.amazon.com/Nikon-Micro-NIKKOR-Digital-Cameras/dp/B005C50H2Y/ref=sr_1_1?ie=UTF8&qid=1403886467&sr=8-1&keywords=nikon+macro+lens

And also, is buying filter just not worth it either? How close up and how is the quality of the picture itself? I know they're not that expensive at all, and you get what you pay for!

Thank you in advance!

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Nikon 55-200 VR or Sigma 18-200mm? Which one is better?

I am using a Nikon D3000. I would like to take portrait and landscape pictures with a good quality. Which one is better? Sigma 18-200 is much more expensive than Nikon 55-200 VR.

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Live streaming video with a Nikon DLSR & MacBook?

I have a wedding I need to stream on Saturday and I was wondering how I can do that with my nikon d5300. How to connect it to the mac, then live stream it and send the link to people…

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My Nikon D3200 skips over modes on the command dial?

A couple of days ago my camera started skipping over modes on the command dial and it wont allow me to use modes like kids(Little kid), or aperture(A). What should i do? And I've already reset the shooting mode, unless there is a way to factory reset it.

Thanks,
Mark

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