| Manufacturer | Optolong |
|---|---|
| MPN | L-eXtreme-2in |
| Brand | Optolong |
| Type | Filter |
Check the listing for details. Optolong L-eXtreme Dual Bandpass Light Pollution Reduction Imaging Filter - 2". Condition: New. Listed at 348.74 USD. It has a narrow 7nm passband centered on H-alpha at 656nm and a second 7nm passband centered on OIII near 501nm. The majority of nebulae have their strongest emission at these two wavelengths. RGB 25 x 600" ISO 3200 - Optolong L-Pro.
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