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Chiaro Pro 37mm 99-UVBT UV Filter

BH #CHT99UVBT37 • MFR #99-UVBT37
Chiaro
Chiaro Pro 37mm 99-UVBT UV Filter
Key Features
  • 99% Light Transmission
  • Multi-Coated
  • Protects Front of Lens
  • Polished Schott Glass
The Pro 37mm 99-UVBT 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
$21.95
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Chiaro 99-UVBT UV Filter Overview

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

The Pro 37mm 99-UVBT 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.

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 we 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 Knurling

Top knurling offers a firm grip on the filter when you're attaching or removing it.

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: 847628593190

Chiaro 99-UVBT UV Filter Specs

Filter TypeUV
Filter Factor1x (0-Stop)
Circular Size37 mm Filter Thread
RotatingNo
Front Accessory Thread / Bayonet37 mm
CoatingsMulti-Coating, Resistance Coating
Physical FeaturesSlim
Filter Thickness0.13" / 3.2 mm
Filter MaterialGlass
Ring MaterialBrass
KnurlingTop
Packaging Info
Package Weight0.165 lb
Box Dimensions (LxWxH)4.15 x 3.3 x 1.2"

Chiaro 99-UVBT UV Filter Reviews

Good for the price

By Luke
Rated 4 out of 5
Date: 2022-01-01

One of the cheapest UV filters, yet it has 99% transmission. I found that it controls flaring and ghosting pretty well compared to other brands. Definitely worth a try.

Fine filter

By Samuel
Rated 5 out of 5
Date: 2021-07-25

Does exactly as expected.

Great filter.....

By Hector
Rated 5 out of 5
Date: 2021-07-09

....for a great price.

Great protection w/o sacrificing quality

By Keeshan
Rated 5 out of 5
Date: 2021-06-21

99% transmission so still a great image and quality while protecting the lens.

Good for the price

By Luke
Rated 4 out of 5
Date: 2022-01-01

One of the cheapest UV filters, yet it has 99% transmission. I found that it controls flaring and ghosting pretty well compared to other brands. Definitely worth a try.

Completely Satisfied

By John
Rated 5 out of 5
Date: 2021-12-23

I did some research prior to buying this filter. Up to this point it was either B&W or Nikon. I just didn't want to spend the better part of $200 on a filter. After 45 minutes of reading and searching I went with this filter because of price, brass construction and it allows 98% of light to pass through with no distortion. It is well made and I assure you it will not disappoint.

Threads on too tight. Destroyed it to get it off my lens.

By David
Rated 1 out of 5
Date: 2021-09-16

I bought this to protect my Sigma 150-60mm DG DN OS lens. I had to make multiple attempts to thread it on without cross-threading it. Once on, I could not get it off. After heating it, cooling it, nothing worked. I had to end up breaking it to get it off. US$100 down the drain. Never again.

Big Fan of Chairo 99 Series Filters

By Floyd
Rated 5 out of 5
Date: 2021-07-28

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 the UV filters 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. The exceptions of course are 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.

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