Front Sleeve internal thread: M48 0.75mm for Filter. Threaded for Standard 2" Eyepiece Filters (48mm). Fully Baffled to reduce reflections.
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The improved precision polar scope maintains a fine engraved reticule, now features adjustable illumination with eight brightness levels. Adjustable polar scope illumination with eight brightness levels.
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The set includes four versatile extension tubes in varying lengths: 5mm, 10mm, 15mm, and 20mm. This modular design allows you to customize your setup by combining one, two, three, or all four tubes to achieve the precise spacing you need for your astrophotography projects.
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Material: Aluminum Alloy. 1 x Holder Ring.
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The main function of the UV IR-cut filter is to correct the color balance of the image. So it is also necessary to add an UV IR-cut filter too. It can be said that UV IR-CUT filter is one of the most widely used filter in astrophotography.
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Each of the filters in this set are 2mm thick and polished to ¼-wave and fully multicoated to ensure optimum image quality. Latest "New" ZWO version. The ZWO 1.25” SHO Filter Set includes three 1.25” mounted astrophotography filters that pass light in a narrow 7nm band from ionized sulfur (SII) at 672nm, Hydrogen Alpha (at 656nm), and ionized oxygen (OIII) near 500nm.
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Front Sleeve internal thread: M48 0.75mm for Filter. Back-end Outer Sleeve external thread: M54 0.75mm Male Threads. T-Ring Mount: for Nikon F-Mount Bayonet. Threaded for Standard 2" Eyepiece Filters (48mm).
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Color pollution near urban areas in the night sky shooting is a common problem for the night sky photographers. The use of a light pollution cut filter, like Kenko STARRY NIGHT, makes it possible to suppress unwanted color from appearing on the final image, for a more natural and realistic color reproduction of a starry-night sky.
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