Optec
25mm OPTEC-4300 Extension (19839)
- Regular price
- $ 135.00
- Sale price
- $ 135.00
- Unit price
- per
This item is out of stock but you can place an order now and we’ll ship when it becomes available.
In StockDescription
The OPTEC-4300 25mm Extension Ring provides approximately 1-inch of extension for any OPTEC-4300 telescope adapter. Ideal for telescopes where the Gemini Focusing Rotator may need to pushed out and away from the OTA to provide clearance for cooling fans or when a little extension is required to reach optimal focus.
Specifications
| Inside Diameter: | 3.9" (99mm) |
| Outside Diameter: | 4.95" (126mm) |
|
Overall Height: |
1.30" (33.2mm) |
| Clear Aperture: | 3.9" (99mm) |
| Weight: | 8.8 oz (250 g) |
| Back-Focus Usage: | 0.984" (25mm) |
The OPTEC-4300 25mm Extension Ring provides approximately 1-inch of extension for any OPTEC-4300 telescope adapter.
Compatibility
- Any OPTEC-4300 telescope adapter.
- Gemini Focusing Rotator.
- TCF-Lynx3 3-inch Focuser.
The OPTEC-4300 25mm Extension Ring provides approximately 1-inch of extension for any OPTEC-4300 telescope adapter.
Buy risk-free: When it’s time to trade up you’ll get the most value for your used gear.
