Chiaro 77mm 99-UVBTS Brass UV Filter

Chiaro 77mm 99-UVBTS Brass UV Filter

Chiaro 77mm 99-UVBTS Brass UV Filter

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Product Highlights

  • 99% Light Transmission
  • Clear UV Protective Filter
  • Polished Schott Glass
  • Scratch Resistant
  • Water, Oil, Dust, Fingerprint-Resistant
  • Slim Brass Filter Ring
  • Top & Side Knurling
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Chiaro 99-UVBTS77 overview

  • 1Description

The 77mm 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: 847628593145
In the Box
Chiaro 77mm 99-UVBTS Brass UV Filter
  • Jewel Case
  • Booklet: The Surprising Truth About Lens Filters
  • Limited 10-Year Warranty
  • Table of Contents
    • 1Description

    Chiaro 99-UVBTS77 specs

    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
    Physical Feature Slim
    Filter Material Glass
    Ring Material Brass
    Knurling Side, Top
    Coatings Multi-Coating, Resistance Coating
    Packaging Info
    Package Weight 0.3 lb
    Box Dimensions (LxWxH) 4.6 x 4.0 x 0.9"

    Chiaro 99-UVBTS77 reviews

    77mm 99-UVBTS Brass UV Filter is rated 4.7 out of 5 by 38.
    Rated 5 out of 5 by from Chiaro 99-UVBTS95 Screw On UV Filter Chiaro 99-UVBTS95 Screw On UV Filter First impression is its weighty, and has heft. To me this is a solid piece of crafted glass optics. The treads are of brass so none of that sticking issue like inexpensive filters. This is 99% UV Filter and this filter is crystal clear out to the edges. In many difficult scenes like water and snow where flair is obvious and sun glare comes into play the images are spectacular and extremely crisp. The multi coat and with the scratch coat to resist water, oil, and dust is a constant with all better quality screw on lenses. The slim design of the knurled edges are enough to screw on and off easily. Even the box it arrived in was a class act. This UV Filter is a keeper and the first of many for my many lenses I own.
    Date published: 2016-12-12
    Rated 5 out of 5 by from Protect your glass with Chiaro 99% light transmission so no loss of image quality - check Brass filter ring prevents sticking to lens & other filters - check Knurling - which I never knew about until I bought this filter but absolutely love - easy on/easy off - check Multi-Coating - prevents flare and loss of image quality - check Glass - Polished Schott B270 - some of the finest glass you can use - check!
    Date published: 2017-04-04
    Rated 5 out of 5 by from Great Quality Glass I've just started using some of Chiaro Filters after reading a review back in 2016. They are a newcomer to the Filter business but they hit a cord with me with their philosophy...�Chiaro focuses purely on the percentage of visible light that passes through the filter unharmed. �I wanted a filter for my new Lumix 100-400mm Tele. This is an expensive lens with some of the best glass made. At these focal lengths light transmission is very important. I bought this Chiaro because of it's 99% light transmission. Best decision I made, it is slim, only 3.2mm so no added bulk. I like the dual Knurling grooves on the top and side, makes it very easy to add or remove. Solid Brass construction and SCHOTT Glass. I'll be buying more Chiaro Filters from now on.
    Date published: 2018-01-18
    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 I'm updating all my UV's to Chiaro! I used to be a B+W guy but I am very impressed with the quality and honest Schott glass from Chiaro. I'm in the process of updating all my lenses to Chario 99-UVBTS filters. Love the brass rings which don't stick and the image quality is not compromised. I even love their packaging - which is very well designed, full of good info, and love the interior plastic protection where I can store extra filters on the go...or save my old filters that I'm no longer using.
    Date published: 2017-04-04
    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 Quality at Economy price My photos are very important to me as is my equipment.� I do keep filters on my lenses to protect them and have had filters that really disappointed.� I've gotten in the habit over the years of purchasing only higher quality filters (at the best price I could find) so that they were not degrading the images.� When I saw this Chiaro filter I was, at first, skeptical because of the price, but as I read the glowing reviews I decided I'd give it a try.� When I received the filter I immediately went out and took a few test photos, put them on my large monitor and zoomed in to 200 and 300% as well as full screen etc.� I could not see a difference between the naked lens and the filtered lens shot.� In the past I've had filters that were very hard to thread on or off.� These threads are precision and smooth.� The glass is tight in the brass ring, as it should be.� I am giving this a five star rating, because in my tests it deserves it as there were no negative issues and I consider the value price to be a great bonus.� In� the future the Chiaro filter will be my first choice for the combination of quality and price that I have not seen any other brand equal.
    Date published: 2018-05-15
    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
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