Characterized by its uniquely durable construction, the 82mm WR Ceramic Protector Filter from Sigma is a clear filter designed to guard the front of a lens from impacts, scratching, and other elements. Developed using a clear glass ceramic substrate, this filter blends a high 99.76% transmittance value with greater hardness than chemically-strengthened glass and greater flexibility than sapphire crystal glass. This results in a build that is shock- and scratch-resistant to withstand a variety of impacts while shooting. Additionally, a water-repellent coating has also been applied to resist water droplets and fingerprint smudging, as well as static electricity from attracting dust or other particles. Built for use in trying conditions, the unique design of the WR Ceramic Protector Filter helps to maintain the lens' inherent image quality while affording a high degree of protection.
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Key Features
- Clear Protection Filter
- Prevents Damage to Lens
- 1x Filter Factor, +0 Stop
- 99.76% Transmittance
Characterized by its uniquely durable construction, the 82mm WR Ceramic Protector Filter from Sigma is a clear filter designed to guard the front of a lens from impacts, scratching, and other elements. Developed using a clear glass ceramic substrate, this filter blends a high 99.76% transmittance value with greater hardness than chemically-strengthened glass and greater flexibility than sapphire crystal glass. This results in a build that is shock- and scratch-resistant to withstand a variety of impacts while shooting. Additionally, a water-repellent coating has also been applied to resist water droplets and fingerprint smudging, as well as static electricity from attracting dust or other particles. Built for use in trying conditions, the unique design of the WR Ceramic Protector Filter helps to maintain the lens' inherent image quality while affording a high degree of protection.
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Sigma WR Ceramic Protector Overview
Clear protection filter guards the front lens element from a variety of impacts and scratching without affecting image quality.
Clear glass ceramic is a highly durable substrate that has a greater hardness than chemically-strengthened glass and more flexibility than sapphire crystal glass.
Unique construction has a Vickers hardness number of 700HV, making it both scratch- and shock-resistant. This hardness also lessens the likelihood of scratching or chipping that can lead to the filter shattering.
Rather than only the surface structure being hardened, clear glass ceramic involves a heat treatment process that precipitates microcrystals of a mineral called spinel in order to achieve consistent, even strength across the entire filter surface. This strength also enables the design of the filter to be notably thin and lightweight.
A water-repellent (WR) coating has been applied that, in addition to preventing water and oil from adhering to the filter surface, also helps to minimize ghosting and flare. This coating reflects 0.24% of light, giving an overall transmittance value of 99.76%.
The WR coating also serves as an anti-static coating, which helps to repel dust or other particles from clinging to the filter surface.
The included hard acrylic case protects the filter when not in use and has been designed to prevent accidental, unwanted opening.
UPC: 085126931834
Sigma WR Ceramic Protector Specs
| Filter Type | |
| Size | |
| Front Accessory Thread / Bayonet | |
| Coating | |
| Filter Material | |
| Ring Material |
Packaging Info
| Package Weight | |
| Box Dimensions (LxWxH) |
Sigma WR Ceramic Protector Reviews
No afecta la calidad de imagen en mi hasseblad
By Mica
Rated 5 out of 5
Date: 2026-06-01
Hice pruebas sin el filtro y con el filtro y no noté pérdida en la calidad de imagen y tampoco reflejos indeseados yo lo recomiendo
Well made filter!
By Anthony
Rated 5 out of 5
Date: 2025-02-14
This is my second Sigma ceramic protector filter and the largest filter I think I’ve ever owned. It’s well made, feels solid, doesn’t bind, and doesn’t do anything negative to images. It’s pricey, but not as expensive as repairing/replacing the lens itself meant to protect.
See any errors on this page?
Hello, does it fit to the Nikon AF-S 24-70 f/2.8E ...
Hello, does it fit to the Nikon AF-S 24-70 f/2.8E ED VR?
Yes, the Sigma 82mm WR Ceramic Protector Filter can fit the Nikon AF-S NIKKOR 24-70mm f/2.8E ED VR Lens.
Date published: 2022-06-07
If you place the 82mm filter on the RF 85mm 1.2L, ...
If you place the 82mm filter on the RF 85mm 1.2L, can you still attach the lens hood?
The Canon RF 85mm f/1.2 L USM Lens has not been tested with that specific filter but it does work with most with the hood attached. The hood will not work with most polarizing filters.
Date published: 2023-05-28
Is the filter frame aluminum or brass?
Is the filter frame aluminum or brass?
The ring on this filter is aluminum.
Date published: 2021-05-19
Does the 95mm filter mounted on the Sony FE 50-150
Does the 95mm filter mounted on the Sony FE 50-150mm f/2 GM Lens interfere with the ability to use the lens hood?
The Sigma 95mm WR Ceramic Protector Filter will not interfere with the use of the lens hood.
Date published: 2026-05-06
Work with Sony FE 16mm 1.8G without any ...
Work with Sony FE 16mm 1.8G without any vignetting?
Yes, the Sigma 67mm WR Ceramic Protector Filter fits onto the Sony FE 16mm 1.8G without any vignetting.
Date published: 2025-11-04
How effective is the hydrophobic treatment? ...
How effective is the hydrophobic treatment? Presumably a titanium oxide coating?
Hydrophobic and oleophobic coatings on glass elements and filters such as the Sigma 95mm WR Ceramic Protector Filter (B&H# SICGC95) are typically fluorine-based rather than titanium-based, as the later would block much visible light. It causes most water to bead and roll off if there is any incline to the angle at which the filter is held. When dealing with water droplets and splashes, I have found this type of coating sheds most water without my needing to address it at all. When a water droplet does not roll off right away, I just blow on it to shed it without having to take a break to wipe the lens or filter. I do not need to touch the element at all and I'm immediately back to shooting.
Date published: 2023-11-27
I'm having difficulty opening the case for the ...
I'm having difficulty opening the case for the first time in which the Sigma 95 mm WR Filter is packed. I've tried twisting it and cannot find any plastic sealant. I would appreciate direction. Suggestions?
Yes! Poorly designed case. One risks sending the entire assembly flying with the huge amount of torque necessary to twist open the 105 mm plastic case.
Date published: 2025-10-13
will this particular ceramic 95mm protector work w
will this particular ceramic 95mm protector work with canon rf 200-800mm lens?
Yes, the Sigma 95mm WR Ceramic Protector Filter is compatible with the Canon RF 200-800mm f/6.3-9 IS USM Lens.
Date published: 2026-05-07