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Lee Filters

Lee Filters 100-90mm Converter Ring for FK100 Filter Holder

SKU CH-MCQA-GJP9P

Allows the 100 mm FK100 filter holder to fit lenses with a 90 mm outer diameter and 86 mm filter thread

  • Converts 100mm holder to fit 90mm lens diameter
  • Enables use of FK100 system on 86mm filter thread lenses
  • Precision-engineered adapter ring for secure filter attachment
  • Expands filter compatibility without vignetting on wide-angle lenses

100-90mm Converter Ring for FK100 Holder

This adapter lets photographers mount the Lee Filters FK100 holder onto lenses with a 90mm outer diameter or an 86mm filter thread. It bridges the gap between the 100mm holder system and smaller front-element optics. The ring is built specifically for the FK100 system.

Limited to 90mm outer diameter lenses

The converter only fits lenses measuring 90mm across the front barrel or sporting an 86mm thread. Lenses with larger diameters cannot seat inside the ring, and smaller lenses lack the necessary contact surface. It does not adapt the holder to other filter-thread sizes.

How it compares

Measured against everything we stock in Lens Filters & Polarizers, at today’s prices. Recalculated every night.

Price $32.99
Cheaper than about 66% of the 1,281 comparable items (median $48.99).

Specifications

No published specifications for this item yet.

Questions about this item

Should I choose this 100-90mm converter ring or a different size for my FK100 holder?

Pick this ring when your lens has a 90mm outer diameter or 86mm filter thread; other converter rings match different lens diameters.

What does the 100-90mm rating mean when I attach it to my lens?

It lets the 100mm FK100 filter holder fit onto a 90mm lens barrel so you can use 100mm filters on that lens.

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