This is a subject where few people agree.
The addition of a filter can cause lens flare when pointing the camera in the general direction of the sun. How the filter is coated can become a factor to remove/reduce lens flare. So can a lens hood.
To get a good look at what is available, I suggest you go to www.porters.com and have them send you their free 120 page catalog. The catalog has more information than their website.
I am using some of their "house brand" filters.
Called "Clear View", and am satisfied so far.
It would be safer to use the Canon brand lens adapter.
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I've been looking online at the Hoya, Crystal Vision, Tiffen, B + W, and some other no-brands....
Does anyone have an opinion? I realize that an image is only as good as your optics... So is one brand better? Price isn't the only issue here.
Does it matter if i get the Canon lens adapter vs. another brand? I've heard of seizure issues with threads on some others.
I guess I would likely get a UV multi-coated lens, and maybe a polarizing (circular, since S2 is auto-focus?). Should I consider purchasing a lens set, like butterfly or b & h photo sites sell? Are these of great quality? I may want a lens hood as well... in the future.
I hope you can help. Thanks in advance for input.

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