The OPTEC-4300 to 3-inch Receiver adapter allows the use of any OPTEC-3000 3-inch draw tube adapter to be used with the Gemini Focusing Rotator.

Includes three oval-point setscrews and 5/64" hex key to secure OPTEC-3000 adapter.

Specifications

Compatibility

• Gemini Focusing Rotator.
• Any OPTEC-4300 receiver adapter.
• Any OPTEC-3000 adapter.

• Inside Diameter: 3.0" (76.2mm)
• Outside Diameter: 4.75" (120.6mm)
• Overall Height: 0.92" (23.4mm)
• Clear Aperture: 3.0" (76.2mm)
• Weight: 5.8 oz (165 g)
• Back-Focus Usage: 0.6" (15.2mm)
• Drawing