A few questions

[someone]

Hey I've got a couple of questions that are probably really easy to answer, but I don't know the answers :P

How do I know what size lens to get so that it fits my camera?

How do I know which ones are better? Lol like I was looking at these lenses which make light sources "give off rays of light" in the picture so they look "twinkly". There were like 20 kinds?! I'm just feeling like there's so much stuff out there and I don't know what would best thing to get that still won't completely empty my wallet :P

[mollyduker]

Filters make the picture twinkly. Are you talking iing lens or filter? Filter depends on the lens and normally it says it on the end of it. Lens depends on the kind of camera you have. So like all nikon have the same mount and all cannon have the same mount etc but filters are different. Every filter can be used on all brands of lense assuming the diamter is right.

You just have to decide what kind of starburst you want on your pictures. Different filters give different starburts. Most filters have a book you can look through to pick which kind of starburst you want.

[someone]

Yeah sorry I was trying to say filter.. the right word just wouldn't come to mind