This plate has 3"-24tpi female thread and allows installation of lenses like Dallmeyer Pentac f8/2.9" onto a Graflex Speed Graphic camera. It will fit other lenses with such thread as well.

Made of high quality aluminium alloy.

Important note: There are many different versions of Speed Graphic exist. This adapter has approximately 92x94 outer size and fits Pacemaker 4x5 version. Please check your plate size to make sure this is compatible version.