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Black anodised aluminium filter holder with round ND32 and rectangular GND 0.6 hard filters attached

Fotodiox

Fotodiox WonderPana XL FreeArc Filter Holder with ND32 and GND 0.6 Hard Filter

SKU CH-7P8V-RHPFE

A filter holder system that accepts 186 mm threaded filters and an 8-inch bracket for square filters, rotating 360 degrees for precise horizon alignment.

  • Holds 186mm threaded filters without vignetting
  • Rotates 360 degrees for precise filter alignment
  • Accepts 8-inch rectangular filters up to 4.0mm thick
  • ND32 filter reduces light by 5 stops
  • GND 0.6 hard filter balances bright skies

Filter holder system for ultra-wide lenses

The Fotodiox WonderPana XL FreeArc holder attaches to lenses that lack native threads and accepts 186mm round filters plus 8-inch rectangular filters. A 360-degree rotation lets you align graduated effects precisely. The kit includes the core holder, an 8-inch bracket and a rigid pouch for transport. It is built for photographers who need to stack neutral density and graduated filters on ultra-wide glass.

186mm thread and 8-inch bracket compatibility

The holder secures to the lens via a dedicated mount and provides a standard 186mm x 1mm thread for round filters. The two-piece bracket adds slots for two rectangular filters between 2.5 and 4.0mm thick, or one rectangular filter behind a round filter. This combination covers the filter formats most commonly used with ultra-wide lenses that have no front thread.

ND32 and GND 0.6 hard filters included

The supplied ND32 round filter reduces exposure by five stops using premium optical glass in a slim aluminum ring. The GND 0.6 hard filter adds a two-stop graduated transition for balancing bright skies. Together they handle typical long-exposure and landscape scenarios, while the holder’s capacity for additional 186mm and 8-inch filters leaves room for stronger densities or different gradations when the scene demands more control.

Highlights

  • Holds 186mm threaded filters without vignetting
  • Rotates 360 degrees for precise filter alignment
  • Accepts 8-inch rectangular filters up to 4.0mm thick
  • ND32 filter reduces light by 5 stops
  • GND 0.6 hard filter balances bright skies

Specifications

No published specifications for this item yet.

Questions about this item

What does the ND32 filter actually do to my exposure in the field?

The ND32 cuts light by five stops, letting you use slower shutter speeds or wider apertures in bright conditions without over-exposing the image.

How does the 186 mm thread interface limit the filters I can use?

The holder accepts 186 mm threaded round filters and, with the included bracket, two 8-inch rectangular filters from 2.5 to 4.0 mm thick.

Will the assembled holder and bracket clear my ultra-wide lens without vignetting?

The ultra-wide aluminium construction is designed to eliminate vignetting, and the whole system rotates 360 degrees so you can position the graduated filter's horizon line precisely.

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