Why Purchase from All-Star Telescope?
Free Expert Support
Whether you are a first timer needing help with setting up or an enthusiast that can't quite make that one thing work, our expert staff are ready to support your needs. With decades of knowledge and first hand experience we've been there and we can help you through it!
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Product Description
Baader Planetarium 2" NX4 (C90)/ETX Expanding Ring
Converts NX4 straight male thread to 2" SC thread (component part of 2958500)
Specifications
| Manufacturer | Baader Planetarium |
| SKU (#) | 2958500A |
| EAN Code | 4047825007216 |
| Weight (kg) | 0.056 |
| Optical length (mm) | 2.5 |
| Usage | Changes NexStar 4 outer thread in the standard 2" SC-thread of all SC-telescopes |
| Inner Diameter / Clear Aperture (mm) | 28 |
| Outer Diameter | 56 |
| Inner Connection (lens sided) | Thread, M28.5, 1.4" (35mm) |
| Inner Connection (eyepiece/-camera-sided) | Thread, T-2 (M42 x 0.75) |
| Outer Connection (eyepiece/-camera-sided) | Thread, 2" (50.8mm) |
| Compatible Brands | Astro T-2, Baader Planetarium, Celestron |
| Type of Adapter | Camera Adapter, Expanding piece, Filter holder |