Astromania Narrow-to-Wide Dovetail Adapter Plate - Adaptor Dovetail Clamp from Vixen Level to Losmandy. This handy adapter plate will let you attach a wider variety of telescopes, or tube ring systems that use wide male mounting bars, to a mount. The Narrow-to-Wide Dovetail Adapter Plate will attach to the saddle of a mount that uses the narrow "Vixen-style" dovetail system (such as the Orion AstroView, SkyView Pro, and Sirius equatorial mounts) and convert it to a wider saddle, which accepts wide "Losmandy style" dovetail bars. You'll enjoy more mounting versatility with the affordable Astromania Narrow-to-Wide Dovetail Adapter Plate, and its new lower-profile design will help keep your astronomy setup conveniently compact and lightweight. Split-clamp design with two large hand knobs for easy use in the field, the split-clamp design allows the saddle to be opened wide for easy drop-in attachment of dovetail plate equipped telescopes. The adapter is CNC machined throughout. No tools are needed for installation.