Omni-Bounce f/Nik 600, Oly FL36
OMNI-BOUNCE Type 600 f/Viv 3700/4700/5600
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.