Zeiss 86mm T* Circular Polarising Filter 

The ZEISS T* Circular Polarising Filter allows you to remove unwanted reflections from non-metallic surfaces such as water, glass, paint etc.

In landscape photography, it can intensify the blue of the sky, the colour saturation of leaves as well as the overall contrast by filtering out light with a particular direction of polarisation.

• Precision: Rotary mount to control the filter effect
• Quality: High-quality glass featuring ZEISS T*® anti-reflective coating
• Flexibility: High-fit accuracy for fast filter change. Can be used with a lens shade
• Compatibility: Ideal for ZEISS lenses. Can be used with non-ZEISS lenses
• Effect Minimises light reflections on non-metallic surfaces and increases the colour saturation under many lighting conditions

Filter Coating

All ZEISS T* Circular Polarising Filters feature the T* anti-reflective coating. Special substances, one by one, are vaporised with very high energy in a high vacuum, which are then deposited on the glass surface as coatings with precisely controlled thicknesses to increase the transmission of visible light and achieve the desired reduction of reflections. The technology has been constantly improved since it was first applied by Carl Zeiss back in the 1930s.

Filter Mount

ZEISS T* Circular Polarising Filters are equipped with standard filter thread mounts with an additional front thread mount , e.g. to attach the standard lens cap. Additionally the rotary mount of the POL Filters allow to control the filter effect individually. Due to their slim frame design they can be used on wide angle lenses, even on a full frame camera body, without vignetting. ZEISS T* POL Filters provide high-fit accuracy for fast filter change and can be used on lenses in combination with their dedicated lens shades.

Transmission Curves

ZEISS T* Circular Polarising Filters have a nearly constant transmission within the range of visible light (between about 400nm and 700nm). So the filter appears in neutral grey tone and does not tamper the hue. Transmission of non-polarised light will be reduced for about 1.5 fstops. Vertical polarized light is nearly completely cut off by the ZEISS T* Circular Polarising Filter. Only a small amount of deep blue wavelengths (400-450nm) will be transmitted.