Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: Stay Away
Review: I bought these filters for my new efs 17-85mm lens. At best, these filters only protect the lens. Unfortunately, most of the time, the filter degrades the picture; especially on auto-focus. You get what you pay for, and I for one wish I went with a better filter.UPDATE:So far, Hoya Filters I've found to be good, but if you want a really nice filter, then go with B&W;.
