The ESATTO 3" → Meade 16″ (4″ rear thread) adapter (PrimaLuceLab, SKU: PL3600292 ) allows you to replace the original focuser in your large Schmidt-Cassegrain Meade 16″ telescope with a precise, automated ESATTO 3" focuser. The adapter screws directly into the 4″ rear thread of the tube, creating a rigid and axial connection with minimal back-focus increment.
• thread conversion: 4″ SCT input (telescope) → M81 × 1 output (ESATTO 3" front)
• full 76mm internal diameter – no vignetting for full frame sensors
• optical thickness < 5 mm – maintaining the nominal back-focus of the SCT system
• CNC milled body made of 6061-T6 aluminum, hard anodized - high stiffness and corrosion resistance
• blackened and grooved interior – effective reduction of reflections, better contrast
• ESATTO 3" ↔ Meade 16″ (4″ thread) flange adapter
• set of M4 mounting screws (stainless steel)
• compatible telescope: Meade 16″ SCT / ACF with 4″ rear thread
• compatible extractor: ESATTO 3"
• telescopic thread (input): 4″ × 1 TPI (Meade large cell standard)
• extraction thread (output): M81 × 1 (ESATTO side)
• optical adapter thickness: < 5 mm
• Inner diameter: 76 mm
• material: aluminum 6061-T6, anodized
• EAN: 8059020773335
• manufacturer: PrimaLuceLab – Italy
The PL3600292 adapter enables the integration of an ESATTO 3" focuser with a large Meade 16", offering precise, remote focusing and the stable, wide optical path necessary for advanced astrophotography.
