Wein W940030 (HS) Hot Shoe Slave/Indoor Range 150-Feet for Camera Features a standard foot on the bottom and 1/4-20" standard tripod thread. Key Features built-in ambient light filter for outdoor use. Constructed of aircraft aluminum and solid epoxy virtually indestructible. Integral 1/4"-20 threaded socket for tripod, monopod or light stand mounting. PC terminal for use with non-shoe flash units.