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Chiaro Pro 39mm 99-UVBTS Brass UV Filter

BH #CHT99UVBTS39 • MFR #99-UVBTS39
Chiaro
Chiaro Pro 39mm 99-UVBTS Brass UV Filter
Key Features
  • 99% Light Transmission
  • Clear UV Protective Filter
  • Polished Schott Glass
  • Scratch Resistant
The Pro 39mm 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.
In Stock
$34.95
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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 39mm 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
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: 847628593015

Chiaro 99-UVBTS UV Filter Specs

Filter TypeUV
Filter Factor1x (0-Stop)
Circular Size39 mm Filter Thread
RotatingNo
Front Accessory Thread / Bayonet39 mm
CoatingsMulti-Coating, Resistance Coating
Physical FeaturesSlim
Filter Thickness0.13" / 3.2 mm
Filter MaterialGlass
Ring MaterialBrass
KnurlingSide, Top
Packaging Info
Package Weight0.175 lb
Box Dimensions (LxWxH)4.2 x 3.3 x 1"

Chiaro 99-UVBTS UV Filter Reviews

Excellent quality filter

By Barney
Rated 5 out of 5
Date: 2022-11-28

Ordered the Chiraro 43mm filter for a new lens. The quality is excellent; the lens deserved it!!

Surprisingly nice for the $

By Randy
Rated 5 out of 5
Date: 2022-11-17

Usually avoid lower priced UV filters no matter who touts them. This was a very nice filter, well made and the features I like. Would buy this brand again.

quality UV filter

By Robert
Rated 5 out of 5
Date: 2022-11-14

the Chiaro Pro 82mm 99-UVBTS Brass UV Filter does the job, with a tight seal, at a very reasonable price

Nice filter; but will not use all the time

By William
Rated 5 out of 5
Date: 2022-11-13

I purchased this for my Kowa TSN-99a. It's a nice filter, BUT when it is attached, the Kowa objective cover does not 'grab' correctly and doesn't stay put. Thus I will only use this filter under conditions that might damage the scope's lens, e.g. near the ocean.

Quality Glass and Construction

By Floyd
Rated 5 out of 5
Date: 2022-11-09

This review for this Chiaro filter is pretty much the same I've given for their other filters I own. I've been using Chiaro Filters for several years now and I really like them. I ONLY use them to protect my lenses from the elements and the Chiaro 99 Series pass virtually 100% of the light. For the record.. With Digital Photography the filters have virtually no UV effect like they once did with film. The argument that they do is almost completely false. With film cameras it was necessary to use a UV filter because film is extremely sensitive to UV light. However, digital sensors are generally insensitive to UV, so the problem doesn't arise to anything like the same extent. There are exceptions of course like Specialty Filters which do perform their function such as Polarizers and ND I have seen some evidence that for certain lenses a UV filter can reduce the purple fringing caused by longitudinal chromatic aberration. The purple fringing of longitudinal chromatic aberration only occurs in particular circumstances and is not the same as the much more common colored fringing caused by lateral chromatic aberration (most noticeable in the corners of the frame). My personal experience and tests with and without a filter is that these effects are almost always insignificant and do not provide good enough reason for using UV filters on a regular basis with digital cameras except for why I do, Protection of the lens glass from the elements. It's certainly less expensive to replace a filter that repair a damaged front element.

Thankful !

By Josephine
Rated 5 out of 5
Date: 2022-10-06

So glad I purchased the filter, it definitely helps protect the lens from any scratches, dings, etc. I do not notice it affecting any images, and will be purchasing another one down the road!

Well made filter

By Dean
Rated 5 out of 5
Date: 2022-11-22

This is a well made filter. It feels sturdy and well built. It is a quality piece of glass and is definitely a step up from what I had on there previously.

Perfect filter

By Anonymous
Rated 5 out of 5
Date: 2022-11-17

Totally functional.

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Asked by: Ramil
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Asked by: Lisa
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