Optolong LRGB + HSO 36 mm (SKU: OPL-LRGBNB-36) extras opinie

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Optolong LRGB + HSO 36 mm (SKU: OPL-LRGBNB-36)
 
 
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758 EUR
price w/o VAT: 617 EUR

Optolong LRGB + HSO 36 mm (SKU: OPL-LRGBNB-36)
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Optolong LRGB + HSO 36 mm is a package of seven rimless astronomical filters intended for use in professional astrophotography sets.

Each filter from the LRGB palette is characterized by a high, exceeding 95% efficiency in the maximum transmission band, and thanks to the use of a very good glass substrate and covering the surface with a full multilayer coating, the resulting image it is extremely vivid and contrasting. Moreover, the separation of the G and R filters peaks was selected in such a way as to effectively eliminate the signal coming from the spectral lines of sodium lamps, which constitute the main part of the light pollution.

The narrowband filters from the HSO palette allow you to take great photos of emission nebulae, such as the famous Pillars of Creation. Moreover, the small half-width of the Hα, S II and O III bands allows for the collection of photographic material even in such unfavorable conditions as the full moon.

All filters included in the kit are covered with a full multi-layer anti-glare coating applied using ion implantation techniques. Thanks to this, the coatings are not only perfect in terms of optics, but also very durable and scratch-resistant.

The most important features of the Optolong LRGB + HSO 36 mm filter set

• high-quality LRGB and HSO filters made of glass from the renowned Schott company
• full multi-layer coating eliminating glare and protecting the surface against scratches
• equal weights of channels in the RGB palette
• increased separation of the passbands for R and G filters allowing for effective blocking of sodium lamp emission lines

Technical specifications

• type of filters: LRGB, HSO
• diameter of the filters: 36 mm
• transmission for the bandwidth in the LRGB palette: 95%
• transmission beyond the transmission range in the LRGB palette: 0.1%
• optical density equivalent beyond the transmission range in the LRGB palette: OD3
• IR cut-off in the luminance channel: 700 - 1100 nm
• Passband midpoint for the Hα line: 656.3 nm
• half bandwidth (FWHM) for the Hα line: 7 nm
• transmission for the Hα line band: 85%
• Center of passband for S II line: 672 nm
• half bandwidth (FWHM) for the Hα line: 6.5 nm
• transmission for the Hα line band: 80%
• Center of passband for O III line: 500 nm
• half bandwidth (FWHM) for O III line: 6.5 nm
• transmission for the Hα line band: 80%
• substrate: Schott optical glass
• filter thickness: 2 mm
• surface quality index: 60/40
• surface finish: polished
• anti-reflective coating: full multi-layer coating (FMC)
• RMS execution accuracy: λ / 4

Elements of the set

• Optolong UV / IR-cut 36 mm filter
• Optolong R-CCD 36 mm filter
• Optolong G-CCD 36 mm filter
• Optolong B-CCD 36 mm filter
• Optolong Hα 36 mm filter
• Optolong S II 36 mm filter
• Optolong O III 36 mm filter

guarantee

24 months










Reviews
 
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