I'm looking to buy a 58mm UV filter. I've decided on Hoya. But there are three types, and that's the confusing part. A standard, HMC (Hoya Multi Coated) and Super HMC. HMC has about 97%+ light transmission, Super HMC around 99%. Unsure about the standard. The prices are respectively: $32, $48 and $63. The standard, note, is not multi coated - but it's not a single layer! It has coating on both sides, and that's the confusing part. I'm on a really, really, really tight budget, having recently bought a whole stack of items. I don't think I'll consider the Super, actually. Is it worth the $16 bucks for HMC, when the standard is already layered on both sides?