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Rectangular resin filter set, sepia graduated, 100mm system, soft/medium edge

Lee Filters

Lee Filters Sepia Graduated Filter Set 100mm System 4x6" Soft/Medium Edge Resin

SKU CH-12M4-7Q74V

Set of sepia graduated resin filters for the 100 mm system, 4 x 6 inch soft/medium edge vertical graduation to enhance rocks, foliage and fallen leaves

  • Adds warm sepia tones to skies and foregrounds
  • Soft-to-medium graduation blends naturally into horizons
  • Resin construction keeps weight low at 1.78 mm thick
  • 100 mm system compatible for wide-angle lenses
  • 4 x 6 inch rectangles cover full-frame sensors

Sepia Graduated Filter Set 100mm System

This Lee Filters set provides sepia-toned graduated filters for the 100mm filter system. The rectangular resin filters measure 4 x 6 inches with a soft to medium vertical graduation. They are designed to enhance landscape colours such as rocks, foliage and fallen leaves. The set suits photographers who want balanced tonal control across the frame.

Resin construction 1.78mm thickness

Each filter is made from optically correct resin with a thickness of .07 inches (1.78mm). The resin material keeps the filters lightweight while maintaining optical clarity for landscape photography. No thermals, noise or power draw apply to these passive optical accessories. The filters operate without any electrical requirements or cooling considerations.

Soft medium vertical graduation

The defining specification is the soft to medium vertical graduation combined with a sepia colour tone. This graduation style suits horizons with moderate transitions such as rolling hills or urban skylines. Buyers needing hard-edge graduations for flat horizons or those requiring different colour densities should select individual filters instead.

Highlights

  • Adds warm sepia tones to skies and foregrounds
  • Soft-to-medium graduation blends naturally into horizons
  • Resin construction keeps weight low at 1.78 mm thick
  • 100 mm system compatible for wide-angle lenses
  • 4 x 6 inch rectangles cover full-frame sensors

Specifications

No published specifications for this item yet.

Questions about this item

How do I mount the 101.60 x 152.40 mm resin filters in the 100 mm holder system?

Slide each filter into the guide rails of a Lee 100 mm filter holder until it seats flush; the step users miss is tightening the holder's locking screw so the 1.78 mm thick resin plates cannot shift during long exposures.

What upkeep will the sepia graduated resin filters need over time?

Wipe both surfaces with a microfibre cloth and optical cleaning fluid after each shoot; resin scratches more easily than glass, so store each 4 x 6 inch plate in its padded sleeve to avoid abrasion that would degrade the soft/medium graduation.

At what point does the 0.07 inch resin thickness become a limitation in bright conditions?

The 1.78 mm substrate can flex slightly when the holder is clamped tightly, introducing minor optical distortion that shows first as edge softness during extended high-resolution landscape sessions.

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