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.

  • 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 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 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.