Quote:
Originally Posted by brk-lnt
While we're on the topic of general cleaning...
All my new lenses get a UV filter first thing after they come out of the box. A UV filter has very little effect on the image itself, and this is a good thing. It basically acts as a $60 insurance policy on the front of a $1200 lens.
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Agree in low impact on image quality (sharpness) but filters can certainly add lens flare. I suggest buying an expensive high-end filter such as a B+W if you are protecting high-end professional lenses. I have found cheap filters add flare and soften the image. All my L lenses have good UV filters on them, although I sometimes remove them for challenging lighting situations or important shots. I suspect it is very difficult to see any difference with very good UV filters. Thin filters will also help with light fall-off in the corners.