STC Astro-Multispectra Clip Filter

STC Astro-Multispectra Clip Filter

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STC AstroMultispectra filter is a general-purpose light pollution suppression filterdesigned to use with DSLRs cameras. It will effectively reduce the interferencefrom artificial lighting, such as mercury and sodium street light, yet allowthe important nebula emission lines to pass, thus enhancing the contrast ofastronomical objects. Supporting by Dr. Wei-Hao Wang, it is improved to passingmore 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 at495.9 & 500.7nm, and the Hydrogen-Beta line at 486.1nm. It is coated by theuse of the IBAD (Ion beam-assisted deposition) technology on Schott® B270optical glass, working for higher durability and easily cleaning. Since lightpollution and airglow are filtered out with ASTRO filter, much more of theinteresting wavelengths of the deep-sky object will be recorded in these longerexposures.



The SLRlenses focal distance is recommended for 60mm or more.

It isspecially designed Astro-Adapter M48-M56 P0.75mm for telescope adapterconnecting Astro filter. CNC Machining is used in precisely manufacturing metalparts. Anodizing Aluminium process could reduce the reflection for image.

STCAstro-Multispectra filter can reduce the interference from artificial lightingin the city ,and enhance the wave length of Hα, Hβ, OIII and SII.

It is coatedby the use of the IBAD (Ion beam-assisted deposition) technology on Schott®B270 optical 2mm glass, working for higher durability and easily cleaning, andpreventing aging variation in optical spectral characteristics due totemperature and humidity change.

High-qualitydouble-sided NANO Anti-smudge coating build excellent performance on waterproofand grease-proof.

Matte blackanodized and Teflon-coated frame design eliminates flare and easy to install orremove from your lens.

This productis an interference filter. Its spectrum characteristics will be subject to theincidence of incoming light. Directly shooting on strong light would effect theimage performance due to the light interference and reflection.



Material : SCHOTT®B270 Optical Glass, Aluminum 6061 rim

Water dropelevation:> 110 degrees

Coating:composite materials and film stack design

Made in:Taiwan


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