| Manufacturer | STC |
|---|---|
| MPN | YF-STC-M48 |
| Brand | STC |
| Type | Filter |
Check the listing for details. STC Ultra Layer Astro Multispectra Light Pollution Filter for Telescope - 2". Condition: New. Listed at 209.88 USD. Supporting by Dr. Wei-Hao Wang, it is improved to passing more than 95% of the light from the main spectral lines from emission nebula, such as the predominant Hydrogen-Alpha line at 656.3nm, the Oxygen III line at 495.9 & 500.7nm, and the Hydrogen-Beta line at 486.1nm.
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