Sigma just announced the WR Ceramic Protector, the world’s first clear ceramic filter for DSLR lenses. Can’t wait to check ’em out. Here’s their BLOG POST and Here’s the vid:
Sigma’s WR Ceramic Protector
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Photo contest sponsored by Sigma, entrance fee req.
34th Annual Spring Photography Contest sponsored by SIGMA – http://pfmagazine.com/photography-contest/?idev_id=1006