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Anodised aluminium filter holder kit for Sigma 12-24mm lens with pinch cap

Fotodiox

Fotodiox WonderPana 145 Core System Kit for Sigma 12-24mm f/4.5-5.6 EX DG II Lens camera filter

SKU CH-R02D-VW5KB

Filter system enables 145 mm filters on Sigma 12-24 mm f/4.5-5.6 ultra-wide lens, includes core hood unit and heavy-duty pinch cap

  • Enables filter use on ultra-wide lenses where impossible before
  • 145mm thread accepts round UV, CPL and ND filters up to ND32
  • Core unit doubles as metal hood protecting front element and built-in hood
  • Heavy-duty snap-on cap shields lens when filters are removed
  • Premium anodised aluminium construction for durability in field use

Filter System for Sigma 12-24mm Lens

The WonderPana 145 Core System Kit is built specifically for the Sigma 12-24mm f/4.5-5.6 EX DG II lens. It enables filter use on this ultra-wide angle optic where standard threads are absent. The anodised aluminium core unit mounts securely and doubles as a protective metal hood. A heavy-duty pinch cap shields the front element when filters are not fitted.

Suits Landscape and Architecture Shooters

Photographers needing neutral density, polarising or UV filtration on this specific Sigma lens will benefit. The system accepts 145mm round filters for long exposures or reflection control. It is not for owners of other lenses, including different Sigma focal lengths, because the core unit is dedicated to the 12-24mm f/4.5-5.6 EX DG II. Users requiring square or rectangular filter holders should look at alternative systems.

All-Metal Construction Handles Extended Use

The aluminium core unit resists heat build-up during long video takes or time-lapse sequences under bright light. Its solid build maintains alignment when stacked ND16 or ND32 filters are mounted for minutes at a time. The pinch cap stays secure on the core unit between shots, preventing loss during active outdoor sessions. No plastic threads or flexible frames are present to degrade under sustained thermal cycling.

Highlights

  • Enables filter use on ultra-wide lenses where impossible before
  • 145mm thread accepts round UV, CPL and ND filters up to ND32
  • Core unit doubles as metal hood protecting front element and built-in hood
  • Heavy-duty snap-on cap shields lens when filters are removed
  • Premium anodised aluminium construction for durability in field use

Specifications

No published specifications for this item yet.

Questions about this item

Which lens must I already own for this kit to fit?

It is made for the Sigma 12-24mm f/4.5-5.6 EX DG II lens, so that lens is required.

Will the 145mm core unit accept my existing round filters?

Yes, it works with all Fotodiox Pro 145mm round filters including UV, CPL and ND4, ND8, ND16 and ND32 types.

How can I confirm the system is mounted correctly after setup?

The core unit snaps securely onto the lens and the heavy-duty pinch cap locks onto the front threads, giving a firm, wobble-free fit.

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