Quote:
Originally Posted by postcardcv
There are two reasons to use filters - firstly for the effects that they give and secondly a protection for the front element of the lens. If you want a photographic effect that a specific filter will give then it is clearly worth using one. However whether it is worth fitting a UV filter purely for protection is another matter. Some people always fit protective filters, personally I never do. I tested some filters on my lenses and found that they had a detrimental effect on the image quality, this seemed more pronounced at longer focal lengths. So I don't use them and rely on the lens hood to protect the front elements from getting knocked.
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thanks posty,that'll do me boy,you just saved me a few quid,