PrimaluceLab 3" visual back for ESATTO 3" and ARCO 3"

This PrimaLuceLab 3" Visual Back provides a robust, precision-aligned interface for using large 3" accessories with the ESATTO 3" focuser or ARCO 3" rotator. Designed for maximum rigidity and smooth mechanical performance, it ensures a stable, flex-free hold—ideal for heavy diagonals, wide-field eyepieces, and oversized imaging components. The compression-style locking system offers secure, slip-free clamping while preserving accurate optical alignment. In excellent pre-owned condition with clean machining and smooth operation, this visual back is a high-quality upgrade for expanding the versatility of your ESATTO 3"/ARCO 3" setup.