Adapter from M81 to M72 female for ESATTO 3 and ARCO 3 (PrimaLuceLab, SKU: PL3600252) PrimaLuceLab opinie

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The M81 → M72 (female) adapter for ESATTO 3" / ARCO 3" (PrimaLuceLab, SKU: PL3600252 ) enables the connection of accessories with an M72 × 1 external thread (reducers, flatteners, filter wheels) to an ESATTO 3" focuser or ARCO 3" rotator that have an M81 × 1 thread on the front. The adapter screws directly into the adapter, providing an axial, rigid connection with minimal back-focus increment.

Key Features

• thread conversion: input M81 × 1 (ESATTO 3" / ARCO 3") → output M72 × 1 (female)
• optical thickness of only 7 mm – negligible impact on the back-focus budget
• full internal diameter 72 mm – no vignetting for full frame matrices
• CNC milled body made of 6061-T6 aluminum, hard anodized - lightweight, stiff and corrosion resistant
• blackened and grooved interior – effective reduction of reflections, better contrast

Set components

• adapter M81 → M72 (female)

Technical parameters

• input thread: M81 × 1 (female)
• output thread: M72 × 1 (female)
• optical length: 7 mm
• Inner diameter: 72 mm
• material: aluminum 6061-T6, black anodized
• compatibility: ESATTO 3" lift, ARCO 3" rotator, accessories with M72 × 1 thread
• EAN: 8059020773397
• manufacturer: PrimaLuceLab – Italy

PL3600252 is a practical accessory that allows you to connect the wide ESATTO 3" focuser or ARCO 3" rotator with popular correctors and reducers operating in the M72 standard, maintaining the full aperture and stability of the mechanical connection.