Kolari Vision UV Bandpass Drop-In Filter for Kolari/Canon EF-EOS R Drop-In Adapter

The UV Bandpass Drop-In Filter from Kolari Vision is compatible with the EF to EOS R drop-in filter adapter from Kolari or Canon. It's designed to work with a full-spectrum modified camera for true UV photography, skin damage analysis, forensic analysis, astrophotography, and other uses. Unlike many third-party UV filters that use interference coating, this one features absorption-based glass, doing away with the problem of inconsistent color across the frame.

The filter has a 50% transmission peak at 365nm, and >25% transmission in the 340-380nm range for high transmission. Average out of band rejection is >OD 4.3 (0.005%), with a minimum rejection of>3.5 OD (0.025%), so there is a high signal to noise ratio and no IR contamination.

The frame is aluminum and the optics are glass with AR/AS coatings. The filter has a wide grip and offers a lanyard attachment point for your convenience.

This filter requires a full spectrum modification to be made to your camera in order to function properly. This entails manually removing the camera's low-pass filter and replacing it with a clear filter. Once that's done, the filter will work as intended. (Kolari Vision can make the modification for you at a cost if you send in your camera to them.)