#19831 - Optec/DSI 3.5" to OPTEC-4300 Adapter.
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#19831 - Optec/DSI 3.5" to OPTEC-4300 Adapter.

$135.00
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Optec, Inc.

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Description Compatibility Specifications Resources The #19831 Male Optec/DSI 3.5" to OPTEC-4300 male dovetail fits the telescope side receiver of the Gemini and allows any combination of our DSI 3.5-inch spacers to be easily installed on the telescope side of the Focusing Rotator. Optec/DSI 3.5" Threaded Spacers. Gemini Focusing Rotator (typically used on telescope side). Inside Diameter: 3.165" (80.4mm) Outside Diameter: 4.95" (125.7mm) Overall Height: 0.83" (21.0mm) Clear Aperture: 3.165" (80.4mm) Weight: 4.8 oz (135 g) Back-Focus Usage: 0.1" (2.5mm) 3d pdf Drawing

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