Vickie, you just need to match the right size of your lens with the closeup filters. The 18-55mm is probably 58mm. It's printed on the rim of the lens itself.
Asa, question. I have a magnifier kit. It includes 4 different ones: 1x,2x,4x and 10x. Are these magnification values? I see people using a 4x with a 2x or a 1x with a 2x. What's the benefit to mixing and matching these? Is there a particular stack that's the best? Is it good to use a 10x over a 2x? I'm kind of confused as to which ones I really should be using. With 4 different powers there are 24 possible combinations.
