The K&F Concept Square Filter Metal Holder with Adapter Ring Set (100mm) is designed for photographers who demand precision and flexibility when working with square filters. Featuring a durable all-aluminum construction, this holder mounts securely to your lens using eight included adapter rings ranging from 49mm to 82mm. It supports up to two 2mm-thick 100mm square filters and is suitable for wide-angle lenses above 18mm without vignetting.
The open top and bottom design allows the use of long graduated filters (100 × 150mm) and enables smooth vertical adjustment for accurate filter positioning. A built-in locking knob ensures your filters stay firmly in place, giving you full control over light, contrast, and exposure. One square filter is included, making this set a complete solution for landscape and outdoor photography.
| Construction | All-aluminum metal filter holder |
| Adapter Rings | 49mm / 52mm / 58mm / 62mm / 67mm / 72mm / 77mm / 82mm |
| Filter Size | 100mm square filters (supports up to 2 × 2mm thick filters) |
| Lens Compatibility | Wide-angle lenses above 18mm (no vignetting) |
| Adjustment | Open top & bottom design with locking knob for precise positioning |
| Included | Square filter holder, 8 adapter rings, 1 square filter |
Warranty: No warranty
Precision filtering for creative control — built for photographers who shape the light.
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| Product Categories | Filters |