The Lens Adapter Ring for UCL-67 is a dedicated optional part to attach INON M67 Close-up Lens, "UCL-165M67"/"UCL-330" on INON Underwater Close-up Lens, "UCL-67 M67"/"UCL-67 LD".

Any other higher magnification close-up lens, "UCL-67 M67","UCL-90 M67" or "UCL-100M67" are not recommended due to degradation of image quality.