The QRQM PRO 46.5 mm adapter allows you to easily and quickly connect the telescope with the Sytong HT66./HT77 night vision cap_x000D__x000D_Adapter for the Sytong thermal imaging cap a convenient, quick and stable system for attaching the cap to the telescope_x000D_The attachment creates a stable connection between the telescope / camera and night vision, without losing zero and reducing accuracy. to the aluminum construction, the adapter is lightweight, resistant to corrosion and weather conditions as well as mechanical damage._x000D__x000D_The adapter fits telescopes with a lens with an outer diameter of 46.5 mm. The adapter has the form of a clamp mounted directly on the telescope lens. Installation does not require the use of tools, because the clamp is locked with a QD clamp._x000D__x000D_Fits attachments: Sytong HT66 and HT77.