Optolong SII 6.5nm Filter - 1.25" Mounted
This filter is used for tricolor CCD astrophotography with H-alpha and OIII-CCD extra narrowband filters, enhancing contrast in nebula images under light pollution.
- The filters of Optolong are not designed for sun observation.
Variants (1)
- Default Title — 159.00 USD — In stock
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