Chiaro 77mm 99-UVBTS UV Filter

Chiaro 77mm 99-UVBTS UV Filter

Chiaro 77mm 99-UVBTS UV Filter

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Product Highlights

  • 99% Light Transmission
  • Clear UV Protective Filter
  • Polished Schott Glass
  • Water, Oil, Dust, Fingerprint-Resistant
  • Slim Brass Filter Ring
  • Top & Side Knurling
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  • 1Description

The 77mm 99-UVBTS 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. Resistance coating helps assure that water, oil, dust, and fingerprints are removed with a gentle wipe. A 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 allow 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: 847628593145
In the Box
Chiaro 77mm 99-UVBTS UV Filter
  • Jewel Case
  • Booklet: The Surprising Truth About Lens Filters
  • Limited 10-Year Warranty
  • Table of Contents
    • 1Description
    Filter Type UV
    Filter Factor 1 (0 Stop)
    Shape Circle
    Circular Size 77 mm
    Rotating No
    Front Accessory Thread / Bayonet 77 mm
    Filter Thickness 0.13" / 3.2 mm
    Filter Material Glass
    Coatings Multi-Coating, Resistance Coating
    Packaging Info
    Package Weight 0.3 lb
    Box Dimensions (LxWxH) 4.6 x 4.0 x 0.9"
    77mm 99-UVBTS UV Filter is rated 4.6 out of 5 by 8.
    Rated 5 out of 5 by from High quality filter for professional level lenses UV filters are essential pieces of equipment in my opinion, but quality is very important. When I buy high end lenses, my investment is in the quality of the glass, and while UV filters protect the glass, they can also compromise image quality. That is not the case with the Chiaro 99-UVBTS UV filter. I've used this filter in a variety of lighting conditions and have been very pleased with the resulting images, both in their color and clarity. The brass construction and side knurling on this filter make changing filters effortless. With it's high light transmission (99%) and solid construction, the Chiaro 99-UVBTS does its job while allowing me to do mine as a professional photographer wanting to produce top-notch images.
    Date published: 2017-03-15
    Rated 5 out of 5 by from Superb Filter - has replaced my B+W UV filters I have used top end B+W UV filters professionally for the last 15 years in locations ranging from Tamil Nadu, India to Molokai, Hawaii in situations where my lens was exposed to excessive dust or salt spray. Searching for a replacement, I was thrilled to discover the Chiaro brand UVBTS. They are a beautifully crafted, superb optical quality and worth every penny. The brass ring keeps the filter from binding on the lens, and the thin filter width of 3.2mm allows it to work beautifully on my ultra-wide zooms without vignetting. Highly recommended.
    Date published: 2017-02-21
    Rated 5 out of 5 by from Great New Filter Manufacturer I am not a huge fan of recommending the use of UV filters as lens protection. This lens has changed my mind. Typically we purchase a cheap UV filter to protect that expensive lens we just bought. This is putting bad glass in front of good glass and lowering the overall image quality-a debateable trade off. I always recommend to my students to purchase the highest quality filters and consider this part of the lens price. You pay more for a lens, so you'll need to pay more for a good filter to ensure the continuity of quality. This Chiaro is that filter. With 99% Light Transmission, you can expect the highest quality image formation and the brass ring makes it a joy to use (most filters useAluminum which tends to bind and make it nearly impossible to remove from your lens). Thank you Chiaro for your dedication to quality!
    Date published: 2017-01-25
    Rated 3 out of 5 by from Seems to be of good quality, this copy may be defective I Placed this filter on a brand new canon 100-400 mkii L lens, pictures were totaly unacceptable. Blamed it on the lens, brought lens to canon factory service, told them if this is Canon L quality I would be switching to Nikon, Left the len there for repair. After keeping the lens and my body for 7 days it was noted they checked lens resolution and auto-focus calibration and all was in spec. I took the lens home assuming i would be returning shortly to Canon service, took a few shots and to my surprise all was well. Then I realized they returned it with out my Chiaro filter. Called and had it mailed back to me, put it on the lens, and resolution turned to garbage. Either this filter, is defective or this lens does not like this filter, I don't know which one. this is the reason for 3 star rating. The filter looks to be of excellent quality, I will give it another chance and try again on next new lens, but not on 100-400. I have ordered a different brand uv filter but have not received it yet for trial.
    Date published: 2017-05-28
    Rated 5 out of 5 by from Chiaro UV filters put to the test in Grand Canyon I normally don't use filters. Why put an extra layer of glass over my expensive lenses. But the Grand Canyon is an extreme environment that is tough on cameras and lenses. I put these new UV to the test with the silt, sand, and water in the canyon. The optical quality is superb. And I'd much rather keep cleaning my filters over and over than the front element of my lens. They have earned a place in my filter kit. Thanks B&H! Do great work, @RalphLeeHopkins
    Date published: 2017-05-21
    Rated 4 out of 5 by from Nice but expensive Nice just a bit expensive
    Date published: 2016-12-06
    Rated 5 out of 5 by from Good filter Does just what I wanted. High transmission of light Brass threads make it easy on/off
    Date published: 2018-01-19
    Rated 5 out of 5 by from Very good product would definitely buy for another lens. Used on my 24-105 Zoom lens
    Date published: 2017-11-15
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