Okay, so I have a wedding coming up in June, and have decided to buy some new glass. Of course, I'm going to need something fast. Would something like this do the trick? http://www.amazon.com/gp/product/B00005LEN4/ref=cm_cr_pr_product_top That's the 50mm f/1.8. Should I be looking at the f/1.4, instead? There's quite a price difference between the two, so I'm not sure if I should continue saving for the 1.4, or if the 1.8 would get the job done on its own. Basically, what I'm asking is this: When I'm walking around the reception hall and I have that f/1.8 lens on my camera, am I really going to miss that extra stop? And I've never used an f/1.4 lens, anyhow. Isn't that on the verge of being too shallow, when taking pictures of people that like to have their whole face in focus? It's my first wedding, and I don't want to take any chances. But I also don't want to spend a couple of hundred dollars more on a lens than I need to. Thanks!