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PEGASUS
Extra narrowband SIICCD 7nm filter (Sulful II for CCD) is designed for nebula observation allowing 7nm bandwidth of light centered on a wavelength of 672nm through
Available within 5-14 days
This includes products that we do not keep in stock but are only available on request or have been announced by the manufacturer. For orders of these items, a deposit is required, proportional to the total value of your order. As soon as we receive your order, we will notify you by e-mail or telephone, for the exact delivery time and the amount of the deposit.
Pegasus 2" SII 7nm Photographic Filter
Extra narrowband SIICCD 7nm filter (Sulful II for CCD) is designed for nebula observation allowing 7nm bandwidth of light centered on a wavelength of 672nm through, and reducing the transmission of certain wavelengths of light, specifically those produced by artificial light including mercury vapor, and both high and low pressure sodium vapor lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. skyglow)
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Filter Size |
2 inch |
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Polish |
1/4 wavefront, Parfocal |
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Transmission Range |
T > 80% 672 nm, 7nm FWHM |
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Coatings |
Multilayer Anti-reflection |
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Type |
Narrowband (7nm) |
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Shape |
Round |
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Thickness |
5mm (filter) + 2.5mm (thread) |
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Thread |
M48, 0.75 pitch |
All orders we receive until 15:00 concerning products in our warehouse, processed on the same day
Well-trained scientific and technical personnel are available to you at any time, to solve the questions and concerns about your equipment.
If you are not satisfied with the product you received, you can return it within 14 days of receipt.
Experience you can trust. Planetarium of Thessaloniki is the largest supplier of astronomy goods in the Balkans
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