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Sigma 72mm WR Ceramic Protector Filter

BH #SICGC72 • MFR #AFF9E0
Sigma
Sigma 72mm WR Ceramic Protector Filter
Key Features
  • Clear Protection Filter
  • Prevents Damage to Lens
  • 1x Filter Factor, +0 Stop
  • 99.76% Transmittance
Characterized by its uniquely durable construction, the 72mm 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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$108.00
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Sigma WR Ceramic Protector Overview

Characterized by its uniquely durable construction, the 72mm 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.

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: 085126931810

Sigma WR Ceramic Protector Specs

Filter TypeClear
Filter Factor1x (0-Stop)
Circular Size72 mm Filter Thread
Front Accessory Thread / Bayonet72 mm
CoatingsMulti-Coating
Filter MaterialGlass
Packaging Info
Package Weight0.24 lb
Box Dimensions (LxWxH)4.9 x 4.15 x 0.75"

Sigma WR Ceramic Protector Reviews

Outrageous Protection for a Lens

By Louis
Rated 5 out of 5
Date: 2022-01-17

If you will look at Sigma's video you will see that these protectors can sustain a blow from a heavy ball bearing dropped on it from a height of three feet. The result is nothing: no crack, no breakage, not even a small ding. If you're hauling your gear around factories that have all sorts of things sticking out and smack a lens against one, the lens will sustain no damage. Furthermore, these are so resistant to scratching that I no longer use lens caps. I carry my lenses in a foam lined case and don't worry about the foam rubbing against the front element. That makes it easier and faster to switch lenses. There you go. That's why I use these on all my lenses.

Strong and beautiful

By Lalith
Rated 5 out of 5
Date: 2021-10-03

These are a must as lens protectors. You can feel it.

Strong and beautiful

By Lalith
Rated 5 out of 5
Date: 2021-10-03

These are a must as lens protectors. You can feel it.

Seems like better protection for expensive lenses!

By Roger
Rated 5 out of 5
Date: 2021-03-02

I've been using B&W Pro UV filters and Zeiss T* filters for years to protect the front elements of all my lenses. Most of the time they only serve to collect finger prints and dust and I would rather clean a filter now and then than risk damaging the coating on the front element of a lens. Seems that UV filters are really not needed with digital sensors and this Sigma is made of a glass-ceramic material that they say is much stronger than glass alone and it is extremely clear to the eye. So worth a premium? To me it is. Over 40 years of photography I have only cracked a couple of UV filters but one of those times the front element of the lens picked up a speck of damage. I think these Ceramic Protectors are definitely worth the cost!

Good buy

By Lalith
Rated 5 out of 5
Date: 2021-11-11

While it is an expensive filter nevertheless it is a good investment in protecting a much more expensive lens.

Good buy

By Lalith
Rated 5 out of 5
Date: 2021-11-11

While it is an expensive filter nevertheless it is a good investment in protecting a much more expensive lens.

Strong and beautiful

By Lalith
Rated 5 out of 5
Date: 2021-10-03

These are a must as lens protectors. You can feel it.

Strong beautiful

By Lalith
Rated 5 out of 5
Date: 2021-10-03

These are a must as lens protectors. You can feel it.

See any errors on this page? Let us know

YOUR RECENTLY VIEWED ITEMS

Is the filter frame aluminum or brass?

Is the filter frame aluminum or brass?
Asked by: Jeff
The ring on this filter is aluminum.
Answered by: Rob
Date published: 2021-05-19

question

Which metal is used for the new Sigma filters?
Asked by: Anonymous
The filter is very new and some information is not out yet. As of now it seems the frame is brass like the other models.
Answered by: Robert K.
Date published: 2021-05-19

question

How thick is the glass on these filters? (Not concerned about the total height of the assembly)
Asked by: Anonymous
Sorry, I returned it after a few days with the associated lens
Answered by: Andre N.
Date published: 2018-08-26
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