Greystone Multicoated UV Filter vs Think Tank Digital Holster 5 V3: which is safer?
Think Tank Digital Holster 5 V3 is the clear pick. Haida Greystone Multicoated UV Filter carries a failing PFAS grade, and we never recommend buying a failing product.
Haida
Greystone Multicoated UV Filter
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleCoating delamination and wear
PossibleHeavy metals in coating pigments or binders
ReportedFluorine-containing polymers in coating binder (PFAS risk)
Our pick
Think Tank Photo
Think Tank Digital Holster 5 V3
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleUndisclosed water-repellent coating chemistry
PossibleCoating degradation over time
Where these two actually differ
- We flag Coating delamination and wear, Heavy metals in coating pigments or binders, Fluorine-containing polymers in coating binder (PFAS risk) and Biofilm or fungal growth on lens surface on the Haida and not on the Think Tank Photo.
- We flag Undisclosed water-repellent coating chemistry and Coating degradation over time on the Think Tank Photo and not on the Haida.
- The Haida is Optical glass with multicoated UV filter where the Think Tank Photo is Ballistic nylon, weather-sealed fabric, metal hardware, which is most of the difference in these two grades.
- The gap is 35 points, wide enough that this is not a close call, and the Think Tank Photo is the one to buy.
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 cases: see the full ranking