We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Urth 75mm square filter holder, magnalium body, built-in sealing gasket, CPL slot, 86mm adapter ring

Urth

Urth 75x75mm Square Filter Holder

SKU CH-4DB7-BCNKG

Holds two 75 mm square filters plus an adjustable polariser, built from lightweight magnalium with integrated sealing gaskets to prevent light leaks, and mounts via an 86 mm adapter ring

  • Holds two 75mm square filters plus adjustable polariser for creative flexibility
  • Magnalium construction delivers lightweight durability for studio and field use
  • In-built sealing gaskets prevent light leaks to protect image quality
  • 86mm main adapter ring with optional rings enables universal lens compatibility
  • Compact square filter system simplifies filter changes during shoots

What it is and who it is for

The Urth 75x75mm Square Filter Holder is a lightweight magnalium frame that secures up to two 2mm-thick square filters plus an adjustable polariser. It threads onto 86mm lens fronts via the included main adapter ring, with additional rings available for other diameters. Landscape and long-exposure photographers who stack ND or graduated filters will find the rigid, leak-free construction reliable in the field.

What the bundled accessories

The supplied 86mm adapter ring lets the holder mount directly on large-diameter lenses without step-up rings. Optional adapter rings extend compatibility to smaller thread sizes, so one holder serves multiple lenses. The dedicated CPL slot holds a circular polariser behind the square filters, allowing independent rotation for glare control while graduated or neutral-density filters stay fixed.

Practical limits of the standard

The holder accepts only 75mm square filters at the standard 2mm thickness; thicker glass or resin sheets will not seat correctly. Vignetting can appear on wide-angle lenses when two square filters and the polariser are stacked, especially at focal lengths wider than the adapter ring's clear aperture. The magnalium body resists corrosion but can dent if dropped on hard surfaces.

Highlights

  • Holds two 75mm square filters plus adjustable polariser for creative flexibility
  • Magnalium construction delivers lightweight durability for studio and field use
  • In-built sealing gaskets prevent light leaks to protect image quality
  • 86mm main adapter ring with optional rings enables universal lens compatibility
  • Compact square filter system simplifies filter changes during shoots

Specifications

No published specifications for this item yet.

Questions about this item

Will the Magnalium hardware or sealing gaskets need periodic replacement?

The Magnalium construction and in-built gaskets are designed for long-term durability with no user-replaceable parts indicated.

What limits how many 75mm square filters can be stacked at once?

The holder accommodates up to two 75mm square filters at 2mm thickness plus the CPL slot.

Does the holder add noticeable heat or weight during all-day outdoor shoots?

Lightweight Magnalium keeps mass low and the passive design generates no heat during extended use.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.