#19833 - OPTEC-4300 to OPTEC-3000 Receiver
The OPTEC-4300 to 3-inch Receiver adapter allows the use of any OPTEC-3000 3-inch drawtube adapter to be used with the Gemini Focusing Rotator.
Includes three oval-point setscrews and 5/64" hex key to secure OPTEC-3000 adapter.
|Inside Diameter:||3.0" (76.2mm)|
|Outside Diameter:||4.75" (120.6mm)|
|Clear Aperture:||3.0" (76.2mm)|
|Weight:||5.8 oz (165 g)|
|Back-Focus Usage:||0.1" (2.5mm)|
- Gemini Focusing Rotator.
- Any OPTEC-4300 receiver adapter.
- Any OPTEC-3000 adapter.