49mm UV filters: refraction city

Started Sep 16, 2012 | Discussions thread
GaryW Veteran Member • Posts: 8,705
Re: 49mm UV filters: refraction city

KM Legacy wrote:

If by "turning a polarizer around," you mean turning it too a position where it has the least effect on sky or reflections, it will still act as a neutral density filter, blocking almost 2 stops of light. Who wants that? Also, a polarizer has more negative effect on IQ than a UV filter. You don't want to use a polarizer for protection.

But it does give a nice effect in many situations. I keep telling myself that I should use it more. I can't say I've noticed an IQ loss, but I try to also use a hood to block out light.

When I don't want a polarizer, I don't bother with a UV filter either, though. Partially because my lenses aren't that expensive (thus it doesn't make sense to buy an expensive UV filter) and I'm not sure I noticed a problem with protection. I've been told on this forum that a UV filter will protect the front element from cleaning marks and help resale value; I don't think this will make much of a difference on a kit lens.

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Gary W.

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