Sigma Drops the Ball on WR Ceramic Protector – Literally

From the Sigma YouTube Channel:
Utilizing an advanced material known as “Clear Glass Ceramic”, the SIGMA WR CERAMIC PROTECTOR is a highly reliable filter with outstanding protective capabilities.
The shock resistance of the SIGMA WR CERAMIC PROTECTOR has undergone a rigorous drop ball test based on the ISO 12311:2013 standard using a 49g metal ball, 3 times the weight of a standard metal ball. The test proved the excellent shock resistance of SIGMA WR CERAMIC PROTECTOR compared to conventional protectors.
B&H carries the Sigma WR Ceramic Protector filters.
Posted: 1/22/2016 5:44:20 AM CT   Posted By: Sean
Category: Sigma News
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