The newest model of Starizona's Nexus 0.75x coma corrector features a removable lip which allows a threaded adapter to be installed.  This gives a direct threaded attachment to the telescope focuser for added security and accuracy.  Multiple threaded focuser adapter (TFA) models are available for a variety of popular telescopes.

• The Quattro adapter has M54.5 x 1 male threads for Sky-Watcher Quattro telescopes
• There are two M54 male thread options with either 0.75mm or 1mm pitch
• The M56 adapter has female M56 x 0.75 threads and fits GSO and Apertura CarbonStar telescopes
• The M57 adapter has male M57 x 0.75 threads
• The M58 adapter has female M58 x 0.75 threads and fits the Askar N160 and N210 telescopes