The Cambo WDS-630 Shiftable Focusing Hood is a removable viewing aid designed for use with the WDS-619 Ground Glass Frame. It incorporates a 3x-magnification loupe, with adjustable 3.0 dioptric setting, and is constructed using Schneider Kreuznach optics for maintained clarity and critical viewing. The hood's design permits easy removal and installation from the frame, and can also be hinged away or shifted about the ground glass to provide a magnified view of the entire frame. The included shift frame magnetically attaches to the fold-away frame of the WDS-619, which allows attachment of the loupe, and permits movements of 15-20mm to cover the full image when using perspective movements on the camera.

This focusing hood is also compatible with the CMSLB, CSLB, and SMSLB Sliding Backs, where this item is referred to as the SLV-630 and provides direct viewing capabilities.