NEW: Completely redesigned lens filter lineup for enhanced performance Sigma is pleased to announce the renewal of Sigma's filter series for interchangeable lenses. The entire lineup has been completely redesigned to achieve further performance improvements. Additionally, the design and packaging have been updated to align with Sigma's new visual identity, introduced in 2025. Four filter models will be released on November 5, 2026: Sigma WR Ceramic Protector PTC-21 A ceramic protector offering exceptional impact resistance. Sigma WR Protector + UV PUV-21 Features UV protection and a water- and oil-repellent coating. Sigma Protector LPT-21 A basic filter to protect your lens from dust, dirt and scratches. Sigma WR Circular PL Filter CPL-21 A circular polarizing filter with water- and oil-repellent coating. FEATURES: • Completely redesigned construction • New exterior design and packaging • Verified compatibility with all Sigma lenses Launch: November 5th, 2026　 　 Head to sigmaphoto....