Can i attach a microphone to my camera?

I have a Nikon Coolpix L110 camera, can I attach a microphone to it for filming? And which ones can I?

Read more: Can i attach a microphone to my camera?

How much would it cost to get my camera repaired?

So I borrowed my dads camera when I went to the beach the other day. It was quite windy, and some some sand must have got blown in it. Since then the lens will not open at all, and when the camera is turned on, just says "lens error" on the screen. The camera is a "Nikon Coolpix L26 Camera" and I just wondered if anyone knew roughly how much this would cost to get repaired, as I'm going to have to pay myself. Just to add, I am from the UK also.

Thanks in advance:)

Read more: How much would it cost to get my camera repaired?

Nikon Coolpix L820, is it a professional camera?

I own a Nikon Coolpix L820, and I'm going to a concert early next year and plan on taking it, I don't have another camera and my phone, lets not go there, it's horrible. And no, I don't have the money for another camera because I'm paying to go to another state so, airfares, accommodation, meals, transport, holiday stuff, Christmas would have not long been and gone and I will also have car payments too so yeah, I'm rambling now.
Anywho, the stadium says no professional cameras, so I've tried to find out if it is or isn't professional but no luck.
If someone could give me an answer and/or tell me how it is or isn't professional, that would be fantastic! Because I was told it wasn't professional when I bought it and then I was told it is classed as professional by a venue I went to last year, just because it wasn't a smartphone or small pocket camera. All help and thoughts would be fantastic! :)

Read more: Nikon Coolpix L820, is it a professional camera?