What's this f-stop thing? I notice if I make it a really big number my pictures are all blurry, and if I make it a really small number then only parts of my pictures are blurry. What's that about?
Really though, I'm shooting a performance a couple of my friends are in. There's no money involved (except the fact that I get in without paying the $5 admission fee), so professionally speaking it's not a whole lot of responsibility.
I know how to use my equipment (though I'm probably going to be sticking to my 85 1.8 since my next best bet is my tamron 28-75, and I don't know if f/2.8 will cut it), and I know generally how the performance goes, but I'm getting some nerves about this being my first...gig kinda thing. Does anyone have any words of wisdom?


