Takahashi Visual Coupling S (TKP00103)

The TKP00103 “Coupling S” adapter is the mechanical link you need to join Takahashi telescopes or visual backs with M43 fittings to 1.25″ accessories via the TKP00101. Offering a 10 mm light path, it’s ideal for preserving critical back-focus when mixing systems—such as threading into a CCA-250 visual adapter and then affixing the 1.25″ eyepiece adapter.

Crafted from matte-black anodized aluminum with elegant knurled grip, this coupling is more than a connector—it’s a precision piece that preserves alignment and focus across modular setups.

Cloudy Nights Community Insight:
Users note that this undersized coupling “earned its keep when inserting a collimation scope inline” and remains imperceptible in the light path—yet critical to maintaining centering and sharpness.

Observing Tip:
Install the coupling between any M43 threaded visual back and the 1.25″ compression adapter. This optimally maintains focus position, especially useful when switching between visual and instrumental accessories.