The #19830 OPTEC-4300 to Optec/DSI 3.5" adapter converts the camera side receiver of the Gemini Focusing Rotator to a 3.5" x 24tpi receiver for the Optec/DSI 3.5" spacers.

#19830 - OPTEC-4300 to Optec/DSI 3.5" Female Threaded Adapter

The #19830 OPTEC-4300 to female Optec/DSI 3.5" threaded receiver allows any combination of our DSI 3.5-inch spacers to be easily installed on the camera side of the Gemini Focusing Rotator.

Specifications:

Inside Diameter:	3.5" DSI Thread
Outside Diameter:	4.95" (125.7mm)
Overall Height:	0.42" (10.7mm)
Clear Aperture:	3.46" (88mm)
Weight:	3.8 oz (110 g)
Back-Focus Usage:	0.1" (2.5mm)

Downloads:

#19830 Dimensional Drawing

#19830 3D PDF

Compatibility:

Optec/DSI 3.5" Threaded Spacers.
Gemini Focusing Rotator (included with standard package).

#19830 - OPTEC-4300 to Female Optec/DSI 3.5"Adapter.

Quantity

In Stock: 6