The ESATTO 3" → Takahashi FSQ-85 adapter (PrimaLuceLab, SKU: PL3600271 ) allows you to replace the original focuser of your Takahashi FSQ-85 ("Baby Q") compact apochromat with a precise, remote-controlled ESATTO 3" focuser. The collar uses the factory rear cell holes, making the mount fully reversible and leaving the telescope's nominal back-focus unchanged.
• Plug-and-play fitment to the FSQ-85 rear cell – no need to drill new holes
• Maintains the design back-focus of the 56mm refractor – full compatibility with the dedicated flattener and Takahashi reducer
• full internal diameter 76 mm – no vignetting for full frame matrices
• 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" ↔ Takahashi FSQ-85 flange adapter
• set of M5 mounting screws (stainless steel)
• compatible telescope: Takahashi FSQ-85 (Ø 85 mm, f/5.3)
• compatible extractor: ESATTO 3"
• extractor thread (ESATTO side): M81 × 1
• optical thickness of the adapter: < 5 mm – does not affect back-focus
• Inner diameter: 76 mm
• material: aluminum 6061-T6, anodized
• EAN: 8059020773311
• manufacturer: PrimaLuceLab – Italy
The PL3600271 adapter combines the legendary "Baby Q" optics with the precise, automated focusing of the ESATTO 3" focuser, offering a rigid, on-axis optical path and the convenience of remote control - key features in modern astrophotography.

