The Lastolite hotshoe Tilthead Shoe Lock 2422

Has a screw locking shoe mount, which offers an additional locking mechanism to work alongside the built in method used on the flashgun. The dimensions of the hotshoe on the bottom of each flashgun can vary from one model/manufacturer to the other. However, the TriFlash Shoe Lock can comfortably accommodate these variances.

The Hotshoe Tilthead Shoe Lock will fit onto any support device with a traditional spigot fitment. The tilt mechanism features a ratchet style pivot which eliminates any sudden movement when the locking screw is realesed. An umbrella socket provides the option to use a reflective or shoot through umbrella.
The dimensions of the hotshoe on the bottom of each flashgun can vary from one gun to the other. However, the Tilthead Shoe Lock can comfortably accommodate these variances, including the Nikon SB900.