The S-type Speedlight Adapter means that you can use Bowens Gemini & Calumet Genesis light modifiers with your shoe-mounted camera flash. The bracket is adjustable to fit most flashes such as Canon Speedlights & Nikon Speedlites. the adapter can be mounted onto light stands with its 5/8" female mount, or for more versatility it can be used in conjunction with the Calumet Swivel Umbrella Adapter & Adapter Spigot (both sold separately) to position the S-type Speedlight Adapter at various angles. Please note that the coldshoe mount on this adapter will not fit Sony flashes.