Takahashi 25mm Spacer for TOA130F (TKA31584)

Description

Takahashi 25mm Spacer for TOA130F (TKA31584)

The TKA31584 is a beautifully crafted, 25mm-thick spacer designed specifically for the TOA130F when used alongside its 67mm flattener. It provides the last ounce of finesse needed to balance mechanical structure, optical alignment, and back-focus, so starfields remain sharp and sweet-edged even when using larger full-frame sensors.

Its smooth, satin-black exterior and clean lettering (TOA130) echo the telescope itself. Internally, the threading fits like a glove, while externally the knurl carries hidden texture for confident hand-tightening. Under loadwhether filter wheels, focusers, or camerasthis spacer holds everything square and steadfast.

CloudyNights Insight:
Users imaging with TOA130F and larger sensors often note that adding this spacer finalized my back-focus chain, and allowed me to tighten the focuser without losing edge sharpness when switching filters.

Observing Tip:
Add this spacer between the flattener and any camera or filter wheel. Doing so lets you adjust focus range, preserve parfocality between filters, and maintain corner-to-corner sharpness without drawing out the focuser unnecessarily.