Omni-Bounce Mz3 f/Nik/Min
OMNI-BOUNCE Type MZ23 Fits Nikon SB/28 also fits Minolta 3500xi
These units are a translucent plastic dome which fits directly onto the front of the individual flash units.
No adjustments are required for automatic flash units except to shorten the maximum flash distance for the flash.
These units reduce the maximum distance by a factor of 2.5.