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2" Astro Urban Sky SⅡ Filter

STC city deep space SHO Astro Urban Sky circular filters accurately locates the three spectral lines, strict parfocal (Parfocal) process with a bandwidth of 7nm narrow frequency tightly combined with German SCHOTT® B270 optical glass to achieve 95% transmittance, with cooling The CCD monochrome astronomical camera can easily obtain the correct colour of SHO. The thickness of 0.5mm glass and the anti-fouling nano coating contribute to the advantages of less fogging and fast heat dissipation. The shortening of the photon path through the filter also avoids halo, ghosting, overlap, flare and other conditions, and greatly improves the degree of focus shift due to thickness. The glass surface polishing process, which is longer than ordinary filters, is clear, sharp, and not blurred even when recording 8K images and using 1200mm high-power telephoto lenses.

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£ 251.99 
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Excellence in Product Design

Each and every product is put through a meticulous R&D program to give you the latest technology. Then each and every filter is hand built, serial numbered and packaged safely ready to be sent out. Use STC products to enhance your photography and videography.

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You'll never look back once you see the difference!

Fed up of the additional filter cost when you buy a new size lens? Our clip filters not only protect your sensor, offer no degradation, but work with all your lenses!

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No compromise on quality while pushing the boundaries.

We understand you want the best. You spend as much money as you can on your equipment. That's why all our products are manufactured from the latest materials and coating technology.

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