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Chiaro Pro 49mm 99-UVBTS Brass UV Filter

Chiaro Pro 49mm 99-UVBTS Brass UV Filter
Key Features
  • 99% Light Transmission
  • Clear UV Protective Filter
  • Polished Schott Glass
  • Scratch Resistant
The Pro 49mm 99-UVBTS Brass UV Filter is Chiaro’s top-performing protective UV filter offering 99% light transmission. It’s ideal for photographers who demand the highest-quality glass and other essential features for uncompromised image fidelity and premium construction.
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Chiaro 99-UVBTS UV Filter Overview

  • 1Description
  • 299% Light Transmission
  • 3Resistance Coating
  • 4Polished Schott Glass
  • 5Multi-Coating
  • 6UV Protection
  • 7Brass Construction
  • 8Slim Design
  • 9Top and Side Knurling
  • 10Secure Attachment
  • 11Front Threads

The Pro 49mm 99-UVBTS Brass UV Filter is Chiaro’s top-performing protective UV filter offering 99% light transmission. It’s ideal for photographers who demand the highest-quality glass and other essential features for uncompromised image fidelity and premium construction.

To achieve superior 99% light transmission, Chiaro uses highly-polished Schott glass, multi-coating, and additional advanced elements that improve the filter’s light transmission. A scratch-resistant coating minimizes scratching of the glass and helps assure that water, oil, dust, and fingerprints are removed with a gentle wipe. The durable brass filter ring is designed to screw on and off effortlessly, and it’s thin to prevent vignetting when used with wide-angle lenses. Side knurling is crafted to help ensure that you’ll have a firm grip when attaching or removing your filter.

Image quality is what matters most at Chiaro. The company has tested and combined many features and essentials to achieve superior image quality and the highest light transmission. To help take the confusion out of selecting a filter, Chiaro prominently displays the light transmission levels so that you can choose the perfect filter for your lens and photo session.

99% Light Transmission
Protecting your lens doesn't mean you have to lose optical quality. By using highly-polished Schott glass and advanced coatings, Chiaro can offer a 99% transmission rate, which is the highest possible transmission rate for glass. And the company verifies the ratings with ISO certified lab testing.
Resistance Coating
The layers of advanced resistance coating on the filter are designed to resist moderate scratches, and allows you to easily clean your filter. Water beads up and rolls off your filter, and oil and fingerprints can come off with a gentle wipe. Dust and debris won't adhere to the filter and can be removed with a puff of air.
Polished Schott Glass
Glass that's polished to perfection is essential to achieve a high level of light transmission. The Schott glass in this Chiaro filter is highly-polished for flatness that ensures superior optical clarity.
Multi-coating enhances light transmission to the demanding level set for all Chiaro filters. It reduces unwanted internal reflections and ghosting that can compromise your images.
UV Protection
The filter blocks UV light and reduces the bluish cast of daylight that can affect color accuracy, especially at higher altitudes.
Brass Construction
The durable brass filter ring offers a substantial, premium feel. The unique properties of brass minimize the chance of jamming or binding when you're screwing the filter onto your lens or stacking filters.
Slim Design
Measuring only 3.2mm, this filter is slim enough to use on wide-angle lenses without experiencing vignetting.
Top and Side Knurling
In addition to top knurling, Chiaro added side knurling that helps offer better options to grip the filter when you're attaching and removing it, or when you're stacking filters.
Secure Attachment
It takes two full turns to mount the filter on your lens. This feature will securely hold your Chiaro filter through the most demanding photo shoots.
Front Threads
The front threads on the filter allow you to stack filters by screwing them onto your Chiaro filter.
UPC: 847628593060

Chiaro 99-UVBTS UV Filter Specs

Filter Type
Filter Factor
1x (0-Stop)
Circular Size
49 mm Filter Thread
Front Accessory Thread / Bayonet
49 mm
Multi-Coating, Resistance Coating
Physical Features
Filter Thickness
0.13" / 3.2 mm
Filter Material
Ring Material
Side, Top
Packaging Info
Package Weight
0.18 lb
Box Dimensions (LxWxH)
4.25 x 3.3 x 0.95"

Chiaro 99-UVBTS UV Filter Reviews

Great Protection

By Troy
Rated 5 out of 5
Date: 2023-09-21

The Chiaro Pro 72mm 99-UVBTS Brass UV Filter offers great protection and optical quality at an affordable price.

Quality from packaging to actual filter

By Husein
Rated 5 out of 5
Date: 2023-09-19

I have ambiguous feelings about filters. You research resolution charts to find quality optics and then buy this quality lens and throw an inexpensive piece of glass in front of it... So here I did just that, purchased a high end expensive lens and felt from a recent experience that I want to protect the coating and front element of this lens. So I came here looking for a quality filter that wasn't ridiculously expensive either. Came across this brand Chiaro, didn't know like other brands. But I saw that it was high light transmission filter made with Schotts optical glass and brass ring and was reasonable in cost. Happy to say that once it arrived the initial reaction was very positive. The packaging is terrific with a nice detailed insert explaining filters in general. It was useful information. The filter itself feels like a quality product, I like how thin it is as well. No worries about vignetting with the wide end of my lens. I had a cheaper filter handy and looked through both side by side and was stunned at the difference in clarity just hand-holding the filters side by side. So I happily threaded this new filter onto my lens. Then came here and purchased these same filters for all my other lenses in different sizes. Very pleased with this purchase. Feel good about protecting the front element and maintaining the IQ I paid for in the lens. Would recommend without hesitation. I see Chiaro has lower rated UVBTS, can't speak to those. But this 99-UVBTS is outstanding, and I've owned B+W, Zeiss, Hoya, and Tiffen and would look for these Chiaro Pro 99-UVBTS again without hesitation.


By Frank
Rated 5 out of 5
Date: 2023-09-06

outstanding value

Quality Protective Filter

By George
Rated 5 out of 5
Date: 2023-08-21

I purchased the Chiaro Pro 43mm UV Filter for my recently purchased Canon RF nifty-fifty lens. The filter appears to be decent quality and I have not noticed any aberrations caused by the filter. I always use UV filters to protect the front lens element. Thanks B&H for the great service!!

Well made

By Terry
Rated 5 out of 5
Date: 2023-08-14

Never ordered this brand before. Seems as sturdy as B+W filters I've used. Also, it was better packaged.


By Phillip
Rated 5 out of 5
Date: 2023-08-08

Precision threads and precision glass make this the ideal UV filter

High Qulity

By Troy
Rated 5 out of 5
Date: 2023-09-21

The Chiaro Pro 82mm 99-UVBTS Brass UV Filter is an exceptional choice for a protective filter. There is virtually no loss of light.

Does exactly what I wanted it to do

By Jason
Rated 5 out of 5
Date: 2023-09-20

I just wanted an extra barrier in front of this massive glass. I haven't noticed any light or AF issues.

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