Farpoint FP473 1.25" Nebula Deep Sky Filter
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• The Farpoint 1.25-inch Nebula Deep Sky Filter is suitable for both visual observation as well as imaging, an all-in-one high-transmission deep sky filter.
• Making the background darker, thus bringing out more detail in gas and planetary nebulas is accomplished because scattered light from the other wavelength ranges is excluded.
• The filter will capture wavelengths in both the OIII / H-beta and H-alpha bands, and is mounted in a machined aluminium cell which is threaded to accept additional filters.