Summary: I bought this filter for my 28-135 Canon Lens. I bought it mostly to protect my lens. I don't see any issue with dust being attracted by this filter. I didn't want to pay more for a B+W filter. I had a good price from Ace Photo Digital, under $40, I am quite happy with them, cheap and fast!
Summary: It is an excellent filter. It is a must have for my precious lenses. The It isn't has sturdy as B+W filter but it does basic UV and dust protection. There is no defect or coating problem on this 72mm but the one I got for 52mm has 3 tiny wash out coating spots.
Summary: The purpose of this filter for my own use is lens protection. The profile of the filter is very slim which makes it unoticable on my lens and does not impead on my photo quality (I do enough of the later myself). I have tried cheaper UV filters but having tried the Hoya version I think I will be opting to change my other size UV filters for the Hoya brand. The quality is far better.
Pros: Clear Optics, Easy To Use, Strong Construction
Summary: I got this to go with a canon 7D and its kit lens 15-85mm EF-S IS - for which it is ideal, its very slim but well made and easy to screw into place, the lens cap fits it very well which can be a concern with some slim filters but not this one.As with the rest of the pro-1 Hoya range the clarity is excellent showing no colour cast or imperfections - and lets be honest here the 18mp sensor of the 7D would pick them up if they existed.Its not the cheapest filter - but then...
Pros: easy to fit and use, High Quality, lens cap fits it well(canon)