Hyperion Finetuning-Ring 14mm (2", M48)
Product.Nr.:
BP#2958214
Manufacturer: Baader Planetarium
17,00 EUR
incl. 19 % VAT
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- delivery time : 1-2 Tage
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product description
- Variable focal lengths with the Hyperion 2" finetuning rings (FTR) 14mm and 2" Baader Filters
- For Hyperion Modular Eyepieces
(5-, 8-, 10-, 13-, 17- und 21mm) - M48 Extension tube
- 2 inch Extension tube
- Eyepiece NOT included
With the addition of Baader's Hyperion Finetuning Rings, each Hyperion modular eyepiece can now function as four eyepieces! Finetuning rings are available in 14mm and 28mm lengths. The finetuning rings are 2" outer diameter and threaded M48 (filter thread) on each end, so they can be installed in-between the Hyperion's removable front negative element and main body. The added spacing decreases the focal lengths (increases magnification), according to the table below. Finetuning rings are made to match the Hyperion finish, and are fully internally sharp v-threaded and blackened to eliminate stray light reflections from the internal surfaces.
Also, another novel way to change eyepiece focal length is to use a Baader 2" Filter in-between the Hyperion negative element and main body, just like a small finetuning ring. The 8.5mm thickness of the filter cell will have a similar (milder) effect in reducing the Hyperion's focal length. This also allows use of 2" filters with Hyperions, something that is not possible with any other 1¼" Eyepiece.
Please Note: Removal and installation of the front negative element should be done in a clean environment to prevent dust or other contamination from depositing on the internal elements (which are very difficult to clean). Also, please note that the 24mm Hyperion is not able to make use of the Finetuning Rings, due to its different optical design.
| Hyperion | w/14mm Ring | w/28mm Ring | w/14+28 Ring | w/Baader 2" Filter |
| 24mm | - | - | - | - |
| 21mm | 17.6 | 15.5 | 14.0 | 18.5 |
| 17mm | 13.1 | 10.8 | 9.2 | 14.6 |
| 13mm | 10.8 | 9.2 | 8.1 | 11.7 |
| 10mm | 8.4 | 7.1 | 6.1 | 9.1 |
| 8mm | 6.0 | 5.0 | 4.3 | 6.9 |
| 5mm | 4.0 | 3.2 | 2.6 | 4.3 |
| 3.5mm* | 2.5 | 2.1 | 1.8 | 2.9 |
*Discontinued
Scope of Delivery
- Hyperion Finetuning-Ring 14mm (2", M48)
Baader Hyperion Eyepiece not included!
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