girellator
Contributor
With the UWL-04 lens, the lens itself is 52mm. Using the 67mm step-up ring adds distance between the optics and results in poorer image quality and vignetting. Using the lens without the step-up resolves this issue and that is why I quoted you one 52mm adapter. "
I'm sorry , but the UWL-04 undergo still vignetting with the 52 mm adaptater , less than with the 67 + step up ring , but still !!

More the Fix adaptater is extremely difficult to manage underwater , it's very fragile
And more of all it is completely overpriced especially if you consider that you can't buy the final piece 52 or 67 or 28 Ad or ST without buying the whole adaptater
