The M56 × 1 → M48 × 0.75 adapter with stop ring (PrimaLuceLab, SKU: PL3600216 ) allows you to connect M48 cameras and accessories to the ESATTO 2" focuser or ARCO 2" rotator. The locking ring allows you to precisely set the camera angle without changing the back-focus budget.

The most important features of the adapter

• thread conversion: input M56 × 1 (ESATTO 2" / ARCO 2") → output M48 × 0.75 (accessories)
• optical thickness 4 mm (1.5 mm adapter + 2.5 mm ring)
• stop ring ensures repeatable camera angle setting
• CNC milled precision ISO 6H threads
• lightweight anodized aluminum body

Set components

• adapter M56 × 1 ↔ M48 × 0.75 with stop ring

Technical parameters

• thread on the exhaust side (input): M56 × 1 (female)
• accessory side thread (output): M48 × 0.75 (male)
• optical thickness: 4 mm (1.5 mm + 2.5 mm)
• material: anodized aluminum
• compatible devices: ESATTO 2", ARCO 2"
• EAN: 8059020773090

The PL3600216 adapter allows you to quickly and stably attach M48 accessories to the ESATTO 2" focuser or ARCO 2" rotator, while maintaining precise framing and full control over the back-focus.