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8299 zł
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price without VAT: 6747,15 zł
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A new era in astronomical photometry began with the launch of the Sloan Digital Sky Survey (SDSS) in 2000. The Sloan photometric system has gained wide acceptance in professional astronomy and will likely be increasingly used in amateur observations as well. As part of the SDSS project, the 2.5-meter telescope at Apache Point Observatory imaged one-third of the sky in five wavelength bands. In front of the detector was a set of filters u, g, r, i, z, transmitting light at 355.1 nm, 468.6 nm, 616.6 nm, 748.0 nm, and 893.2 nm, respectively. These bands were chosen to minimize the effects of light pollution, including atmospheric airglow at 558 nm and the mercury line at 546 nm. The Baader SLOAN ugriz' filter set has been developed specifically for photometric purposes and is suitable for use in telescopes with apertures from f/15 to f/1.8. Additionally, the system includes a z' filter, slightly overlapping the i' band, which increases the precision of measurements. Reflex-Blocker coatings provide high transmission and minimize reflections, which is of particular importance in photometric measurements. • filter size: 50 × 50 mm
• type: bandpass filter (ugriz')
• application: astronomical photometry
• transmission: adapted to the Sloan Digital Sky Survey system
• coatings: anti-reflective Reflex-Blocker™
• telescope aperture range: from f/15 to f/1.8
• observational objects: variable stars, deep sky objects
• frame: none (filters unframed)
• set weight: 370 g
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