Description
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.
Specifications
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) |
The #19831 Optec/DSI 3.5″ to OPTEC-4300 adapter converts the telescope side receiver of the Gemini Focusing Rotator to a 3.5″ x 24tpi male Optec/DSI 3.5″ thread.
Compatibility
- Optec/DSI 3.5″ Threaded Spacers.
- Gemini Focusing Rotator (typically used on telescope side).
The #19831 Optec/DSI 3.5″ to OPTEC-4300 adapter converts the telescope side receiver of the Gemini Focusing Rotator to a 3.5″ x 24tpi male Optec/DSI 3.5″ thread.