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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
Optec OPTEC-4300 to DSI 3.5"(F) Adapter

Optec OPTEC-4300 to DSI 3.5"(F) Adapter

by Optec
SKU OPC-19830
$135.00 - $135.00
$135.00
$135.00 - $135.00
$135.00
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Availability Info
Qualifies for FREE Shipping in CONUS on orders over $350.

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.

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)

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.