Baader Planetarium Stronghold Tangent Mount Assembly, Black Baader Planetarium Stronghold Tangent Mount Assembly - 3/8" to 1/4" Thread Adapter - 1/4" Photo Screw - EQ/GP Dovetail Clamp - An Additional Lever - Baader Planetarium Warranty The Baader Planetarium Stronghold Tangent Mount Assembly is used for guiding scopes, viewfinders, and telephoto lenses The Stronghold Tangent Mount Assembly can hold a max load of 7 kg Baader's Stronghold Tangent Mount Assembly has a two-dimensional head with micro adjustments Base Side Connections: GP dovetail clamp to be attached on the base side; 1/4" and 3/8" photo thread allowing you to mount on photo tripods; additional metric thread bores for individual solutions