Pegasus Astro Adapter M72 Male to M68 Male

Its primary function is to connect two components that both have female threads, one being M72 and the other M68. This is common when connecting a focuser from one brand to a field corrector or reducer from another, allowing you to build a rigid, threaded imaging train with otherwise incompatible parts.

A 1.0mm pitch is a fine thread standard that creates a more secure and rigid connection compared to coarser threads. For astrophotography, this minimizes the potential for tilt and flexure, which is crucial for maintaining sharp stars across the entire field of view, especially with heavy camera setups.

As a male-to-male adapter, its purpose is to join two female-threaded components directly. While it has a minimal physical thickness, you must account for this in your back focus calculations. The exact optical path length is not specified and should be measured for precise spacing.

This depends on the specific threads of your components. Many Sky-Watcher focusers use M72 female threads, and some reducers use M68 female threads. If your specific models use these threads, this adapter should provide the correct physical connection.

You would thread the M72 male side into the M72 female port on one component (like a focuser drawtube) and the M68 male side into the M68 female port on the mating component (like a field flattener). Ensure both sides are threaded securely but do not overtighten.

While primarily designed for creating rigid astrophotography trains, it can be used in a visual setup if you have a diagonal or other accessory with the corresponding female threads. However, its main benefit of preventing flexure is most critical for imaging applications.