HD3 UV Filter vs WR UV Filter: which is safer?
Sigma WR UV Filter is the clear pick. Hoya HD3 UV Filter carries a failing PFAS grade, and we never recommend buying a failing product.
Hoya
HD3 UV Filter
PFAS grade
F 50/100
Overall grade
F 24/100
Verdict
Skip
Hazard flags
⚑ 5
Material
Optical glass with UV-absorbing coating
Confidence
62%
PossibleCoating delamination or degradation
ReportedOptical glass breakage and sharp edges
PossibleFungal or bacterial growth on glass surfaces
Our pick
Sigma
WR UV Filter
PFAS grade
A 100/100
Overall grade
A 96/100
Verdict
Buy
Hazard flags
⚑ 1
Material
UV-absorbing optical glass or mineral coating
Confidence
72%
PossibleOptical coating degradation and microabrasion
Both products run through the same public rubric: materials, coatings, brand disclosure, lab findings, and recalls, plus a beyond-PFAS hazard analysis. Grades are model-based estimates, not lab tests. How grades work →
More waterproof camera & lens protection: see the full ranking