Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.
Hoya Variable Density Filter comes out ahead by a narrow margin (4.7 vs 4.6). The gap is mostly about buyers who need sharpness with budget over Schott glass — read the strengths below before deciding.
The Hoya Variable Density is the sharpness pick — best sharpness retention in the variable category.
The K&F Concept Kit is the multi-stop pick — fixed-stop ND set for landscape shooters.
Best sharpness. Cleaner coatings issue. Blue cast at max.
6-piece kit. Cheaper than B+W. Less proven brand.
| Spec | Hoya Variable Density Filter | K&F Concept ND Filter Kit |
|---|---|---|
| Range | 2-9 stops | ND2 to ND64 |
| Coating | HPMC | — |
| Brand | Hoya | K&F Concept |
| Type | Variable | — |
| Pieces | — | 6 |
| Glass | — | German optical |