B+W and Hoya both make clear UV filters that photographers mount on the front of a lens, mostly as a layer in front of the glass. Neither brand makes a perfect choice for everyone, so the real decision comes down to your lens, your coatings preference and how much you value features such as a slim frame. Confirm the exact lines and sizes on each maker’s page.

What a UV Protective Filter Is
A UV filter is a clear piece of glass in a threaded ring. In the film era, it reduced ultraviolet haze. On modern digital cameras, most people use it as a clear cover over the front element, so a smudge or a light knock lands on the filter rather than on the lens. Some photographers prefer not to use one, because any extra glass in front of the lens can add reflections or flare in difficult light.
How the Two Brands Differ in General
- B+W: A German-heritage brand, known for brass filter rings and multi-layer coatings. It offers several lines with different frame designs and coating levels.
- Hoya HD: A Japanese brand. The HD line is described by the maker as having hardened glass and multi-coating. Hoya also sells other lines with different features.
Both brands describe their coatings as reducing reflections and making the glass easier to clean. Treat these as the maker’s claims and read the product pages for details.
What to Compare Before Choosing
- Filter size. Check the thread diameter printed on the front or inside of your lens cap.
- Frame thickness. Slim frames help on wide lenses, where a thick ring can show up as dark corners. Standard frames are fine on longer lenses.
- Coatings. More coating layers generally mean fewer reflections, which helps against flare with bright lights in the frame.
- Front threads. Some filters have threads on the front for lens caps and hoods. Others do not, so check this if you stack accessories.
- Cleaning. Look for coatings that the maker says repel water and oil.
- Total cost. Compare the line you want across sizes rather than only one number.
Who Should Choose Which
Choose B+W if you value a premium frame style and a choice of lines with slim options for wide lenses. Choose Hoya HD if you like its hardened glass approach and a straightforward product range. Either is a reasonable option for an everyday lens, and differences in daily use are often small compared with lens technique.
FAQ
Do UV filters reduce image quality?
A well made, well coated filter usually has a small effect, though extra glass can add flare in harsh light. If you see ghosting at night, try removing the filter to compare.
Do I need a UV filter at all?
No. A lens hood and careful handling also help guard a lens. Some people use filters mainly in dusty or sandy places.
The Short Version
B+W and Hoya HD both make clear UV filters, and the best choice depends on your lens size, frame thickness needs and coating preferences. Check the maker pages for exact specifications before you buy.