Quantaray is a re-branding company, that is they don't actually make anything of their own, but rather buy stock from other companies and sell it under their name. It might be a re-branded Tiffen or Hoya, in which case it might be half-decent, but it is just as likely, if not more, to be an off-shore piece of junk. I would spend a little more money and get at the very least a Tiffen or Hoya (one of the multi-coated line). If you can swing a few dollars more, than look to Rodenstock, B+W/Schneider or Heliopan. You should plan to spend a MINIMUM of $75 on a 60mm filter and $100+ on a 77mm. Remember this filter is the very first thing that will affect the light bound for your sensor. Cheap filters are worse than none at all and may cause all sorts of flare/abberation. Optics are NOT a place to save money.