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Clear glass 138mm circular split-field diopter filter with +2 magnification strip 15mm wide

Tiffen

Tiffen 138mm +2 Strip 15mm Diopter camera accessory

SKU CH-GCTA-DZJ4Z

A 138 mm +2 strip diopter with 15 mm split field for selective close-up magnification on professional lenses

  • Magnify details with +2 diopter strength
  • Split-field design enables selective focus effects
  • 138mm thread fits wide range of professional lenses
  • Optical glass construction preserves image clarity
  • Minimal light loss maintains bright exposures

Close-Up Magnification Tool

The Tiffen 138mm +2 Strip 15mm Diopter is a split-field filter that adds a +2 diopter to a 15mm strip across the frame. It lets cinematographers and photographers magnify one portion of the scene while the rest stays at normal focus. The glass construction preserves optical clarity and resists scratches during regular use.

For Selective Focus Work

This accessory suits professionals who need precise in-camera control over depth of field for split-focus or double-imaging effects. It is not intended for shooters who want uniform magnification across the entire frame or who require a full-frame close-up filter for general macro photography.

138mm Thread Diameter

The filter mounts on any lens with a 138mm front thread, a size common on larger cinema and broadcast optics. If your lens uses a different thread diameter you will need a step-up or step-down ring, which is not included.

Highlights

  • Magnify details with +2 diopter strength
  • Split-field design enables selective focus effects
  • 138mm thread fits wide range of professional lenses
  • Optical glass construction preserves image clarity
  • Minimal light loss maintains bright exposures

Specifications

No published specifications for this item yet.

Questions about this item

What lens thread size must my lens have to attach this 138mm diopter?

Your lens needs a 138mm front filter thread to mount this diopter directly.

Will the 15mm strip area cover the full frame of a vintage full-frame lens?

The 15mm strip covers only a portion of the image circle; it will not affect the full frame uniformly.

How can I verify the +2 diopter strength is producing the expected magnification?

Focus on a ruler at the lens minimum focus distance; the strip area should show roughly half the working distance compared to the uncovered area.

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