This adapter ring allows you to use the Haida Canon Rear Lens Filter Kit (sold separately) on the following Canon lenses:
- EF 8-15mm f/4L Fisheye
- EF 11-24mm f/4L USM
- EF 14mm f/2.8L USM
- EF 15mm f/2.8 Fisheye
- EF 16-35mm f/2.8L USM
- EF 17-35mm f/2.8L USM
- EF 17-40mm f/4L USM