SIGMA WR CERAMIC PROTECTORーDrop Ball Test

*多言語字幕対応 / Multi language subtitles SIGMA WR CERAMIC PROTECTORは、「クリアガラスセラミック」を採用した、信頼性の高い保護フィルターです。 ISO12311:2013の規格に準拠した鋼球落下試験装置と、規格の約3倍となる49gの鉄球を使い、WR Ceramic Protectorの耐衝撃性能を検証しました。 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 t
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