I don't think it can be done, not without some custom work. WWL-1B only mounts on a Nauticam bayonet, and while Nauticam sells a 67mm to bayonet adapter, it requires the port to have a narrow front flange to fit over. Easydive flat ports don't have 67mm threading at all, and their adapter for macro lenses doesn't look like it will with with Nauticam's bayonet adapter. Even if you somehow kludge them together, and figure out the proper extension that you need to fit the 28-60mm, I doubt you will achieve the close fit needed for WWL-1 to work properly without vignetting.