ADM D Series Dovetail Bar

The D-Series, often referred to as the Losmandy-style, is a wider dovetail standard compared to the smaller V-series. It provides a larger surface area for clamping, which significantly increases stability and reduces flexure, making it the preferred choice for heavier 8-inch optical tubes.

This bar is designed specifically for 8-inch optical tube assemblies (OTAs). While it fits the standard 8-inch form factor, you should verify that your specific telescope tube has the appropriate mounting holes to accommodate the bar's hole pattern.

Stock dovetail bars are often made of lighter materials or have less surface area, which can lead to unwanted vibrations or shifting during long-exposure imaging. The ADM D-Series bar offers a more rigid, secure interface that keeps your optical tube firmly locked in place.

Yes, a longer or more robust dovetail bar like this one gives you more physical room to slide the telescope forward or backward in the saddle. This extra travel is essential for achieving perfect balance, especially when you add heavy accessories like cameras, filter wheels, or finderscopes.

Installation typically requires standard hex keys or screwdrivers, depending on the specific mounting screws provided with your telescope. It is a straightforward process, but ensure you have the correct size tools on hand to avoid stripping the bolts.