UV Filter Sizes: Which One Fits Your Lens?
By Lens-Aid | Published: 2026-10-24
Category: Buying Guides
Learn how to find the correct UV filter size for your camera lens, including common sizes like 52mm, 39mm, and 49mm, and what to do if your lens uses a different thread.
Quick Answer
The correct UV filter size matches the filter thread diameter printed on your lens barrel or lens cap, usually marked with a "⌀" symbol and a number in millimeters (e.g., ⌀52). Common sizes include 52mm, 39mm, and 49mm, but many other diameters exist.
Why Size Matters
A UV filter screws directly onto the front of your lens. If the diameter is wrong, it simply won't attach. Using a filter that is too large or too small can damage the threads or leave your lens unprotected.
Fortunately, finding the right size is straightforward. The filter thread diameter is a fixed specification for each lens model, so you only need to identify it once.
Frequently Asked Questions About UV Filter Sizes
- How do I find my lens filter size?
- Look on the front of your lens barrel or the underside of your lens cap. You will see a symbol like "⌀" followed by a number in millimeters, such as ⌀52, ⌀39, or ⌀49. That number is your filter thread diameter.
- What if my lens uses a size not listed here?
- Many lenses use diameters like 58mm, 67mm, 72mm, or 77mm. Check your lens marking first. If Lens-Aid does not stock that exact size, you can use a step-up ring to adapt a larger filter to a smaller lens thread, but the filter must match the ring's outer diameter. Always verify the exact number on your lens before ordering. A step-up ring can help if your exact size is unavailable.
- Can I use the same UV filter on different lenses?
- Only if the lenses share the exact same filter thread diameter. For lenses with different diameters, you would need separate filters or a step-up ring for each combination. Buying a filter for your largest lens and using step-up rings on smaller lenses is a common cost-saving approach.
Popular UV Filter Sizes from Lens-Aid
- UV-Filter 52 mm – Schutzfilter für Kameraobjektive: The Lens-Aid UV-Filter 52 mm is designed for lenses with a 52mm filter thread and protects the front element from scratches, dust, fingerprints, and splashes. If your lens has a 52mm thread, this filter provides a durable, everyday protective layer that is much cheaper to replace than the lens itself.
UV-Filter 52 mm – Schutzfilter für Kameraobjektive - UV-Filter 39 mm – Schutzfilter für Kameraobjektive: The Lens-Aid UV-Filter 39 mm fits lenses with a 39mm filter thread and also filters ultraviolet light. For compact cameras or older lenses with a 39mm thread, this size ensures a snug fit without needing a step-up ring.
UV-Filter 39 mm – Schutzfilter für Kameraobjektive - UV-Filter 49 mm – Schutzfilter für Kameraobjektive: The Lens-Aid UV-Filter 49 mm protects lenses with a 49mm filter thread from scratches, dust, fingerprints, and splashes. 49mm is a common size for many prime lenses and some zoom lenses, making this a versatile protective option.
