Fast Memory Cards and UV Filters

Soldato
Joined
28 May 2010
Posts
4,838
Location
London, UK
Two questions in one really!

Does fast memory cards make a difference when taking still photos? I have seen class 10 to be 30mb/s but what is this 200x/300x/400x marking on some others?

Also in some articles I have read it says, it is not needed to have a UV filter fitted to the lens, but most of the places try to sell filters with the lenses!
So do I need a UV filter?

I must say I am a noob when it comes to DSLR and have just bought my first(D3100) yesterday.
 
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