4x5 speed graphic shutter mounted on 8x10 camera

sorry for the poor composition in the last scene. This is a pacemaker speed graphic that s been turned into a 1, 301, 1000 shutter for an 8x10 large format camera. I use this to shoot outdoors wide open and with sufficient light indoors. Lens is a 19 B L Sigmar softish portrait lens. Camera is an 8x10 Burke James Rembrandt 1.