Which camera and mic is better?

This summer, I'm shooting a documentary film on a factory, and I want to know which camera has a better picture outcome: the Nikon Coolpix 510, or the Canon Vixia HF R400. And, what are some cheap but great mics (under $50) I could possibly buy?
Thanks,
Riley

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CAMERA DILEMMA! Sony Cyber-shot, or Nikon Coolpix?

I'm going travelling for 2 months, and need a small compact digital camera to take with me.

I've been going through so many cameras, and have finally narrowed it down to two:
- Sony Cyber-shot DSC-W180B or,
- Nikon Coolpix S2800

They both pretty much have the same specs - 20mp, CCD sensor, panoramic settings. I've been trawling through reviews to see if there is anything that distinguishes between the two but they've all been surprise surprise - the same sort of reviews.

There was one website which only rated the Nikon a 3/5, because of lacking features and battery life. This to me makes no difference.

At first I thought I'd go for the Sony, but the difference in price is only £20, but for the same sort of camera, is it worth spending the extra £20?

Has anyone got, or had either of these two cameras who could help me out in deciding which one to get?

Thanks everyone!

Read more: CAMERA DILEMMA! Sony Cyber-shot, or Nikon Coolpix?