Urth Step-Up Ring Lens Filter Adapter - 72-77mm

A step-up ring allows you to mount a larger diameter filter onto a lens with a smaller filter thread diameter. For example, you can use a 52mm filter on a 49mm lens.

You need to know the filter thread size of your lens (e.g., 72mm) and the filter size you want to use (e.g., 77mm). The ring will be labeled with these two sizes (e.g., 72-77mm).

While they physically attach to most threaded lenses, it's crucial to consider potential vignetting on wide-angle lenses. It's best to test with your widest focal length.

The matte black anti-reflective finish is designed to minimize internal reflections and stray light, helping to preserve image quality. However, using multiple adapters or filters can introduce slight optical effects.

Yes, the rings are CNC-machined from aerospace-grade 6061 aluminum, making them strong, lightweight, and corrosion-resistant for long-term use in various conditions.

Precision threading ensures a smooth, secure fit without jamming or cross-threading, making it easier and faster to attach and detach filters, especially in the field.

Urth products, including these step-up rings, are typically backed by a lifetime quality guarantee, reflecting their durability and commitment to lasting performance.

Ensure you are using the correct size adapter and that both the lens thread and the adapter thread are clean and free of debris. Try gently wiggling the adapter as you screw it on. Do not force it, as this could cause cross-threading.

Check that the filter threads and adapter threads are clean. Ensure you are not cross-threading; align the filter carefully with the adapter before turning. If it resists, remove and try again.

This step-up ring may be too large for your lens's focal length, especially when used at wider angles. Try using a smaller step-up ring if available, or use the filter on a lens with a larger thread size. Test at your widest focal length to identify the issue.

Ensure the adapter is fully screwed onto the lens thread. Some slight looseness might be inherent in the manufacturing tolerances, but it should feel secure. If it feels excessively loose, it may not be the correct size or could be damaged.