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A 95mm circular glass filter with a reflective hot mirror coating

Cavision

Cavision 95mm Hot Mirror Filter 30-layer coating

SKU CH-HBG0-9Z6RC

A 95mm hot mirror filter with 30-layer coating blocks infrared light pollution in strong IR conditions

  • Eliminates infrared light pollution with a built-in dielectric mirror
  • 30-layer coating ensures precise infrared wavelength reduction
  • 95mm thread fits lenses requiring 3.74 inch diameter
  • 127mm outer dimension matches 5.00 inch filter holders
  • Maintains visible red wavelengths while blocking unwanted infrared

What It Is

The Cavision 95mm Hot Mirror Filter uses a dielectric mirror to remove infrared light pollution that appears during long exposures near strong IR sources such as fires or sunset. It is built for digital-camera users who need accurate colour rendition without losing visible red wavelengths. The 30-layer coating on optical glass provides consistent performance for both indoor and outdoor shooting in bright conditions.

Practical Limits

The filter threads onto lenses with a 95mm front diameter, so it only fits that specific thread size. Its dielectric mirror targets infrared wavelengths while transmitting visible red, meaning it will not correct colour shifts caused by ultraviolet or visible-light contamination. Long exposures in extreme IR environments may still show residual pollution if the source intensity exceeds the coating's rejection capability.

Capacity And Headroom

The 30-layer coating delivers reliable IR reduction for typical landscape, architectural and creative long-exposure work. It comfortably handles bright daylight and moderate artificial IR sources without degrading visible colour fidelity. Very intense or prolonged IR exposure, such as direct furnace or welding arcs, can overwhelm the filter's blocking capacity and introduce unwanted artefacts.

Highlights

  • Eliminates infrared light pollution with a built-in dielectric mirror
  • 30-layer coating ensures precise infrared wavelength reduction
  • 95mm thread fits lenses requiring 3.74 inch diameter
  • 127mm outer dimension matches 5.00 inch filter holders
  • Maintains visible red wavelengths while blocking unwanted infrared

Specifications

No published specifications for this item yet.

Questions about this item

What does the 30-layer coating do for infrared control?

The 30-layer coating on the optical glass ensures complete infrared wavelength reduction accuracy while preserving visible red wavelengths for accurate colour.

How does the dielectric mirror affect long-exposure shots near strong IR sources?

The built-in dielectric mirror filters out infrared light pollution common in long exposures near fires or sunsets, improving clarity without shifting visible reds.

Will the 95mm thread fit my 127mm diameter lens?

The filter has a 95mm (3.74") thread size; the 127mm (5.00") figure is the overall outer diameter, so match the thread to your lens.

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