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140 EUR
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price without VAT: 113 EUR
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 Shop online:
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Shop in Warsaw (qty):
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Shop in Chorzow (qty):
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The Daystar Filters Imaging FlatCap FC190 is a diffuser designed for capturing flat-field calibration frames in solar imaging. The device is temporarily installed on the front of the telescope when taking reference images used to remove dust spots, vignetting, and filter non-uniformity from the final image. The Gaussian diffuser strongly blurs the Sun so that the reference frame records only imperfections in the imaging train, which can then be corrected during image processing.
• diffuser for capturing flat-field calibration frames in solar imaging
• helps remove vignetting, dust spots and optical system non-uniformity during processing
• Gaussian intensity distribution diffuser
• mounted on the front of the telescope during flat frame acquisition
• construction with spun aluminum mounting ring and polymer diffuser
• designed for telescopes or optical components with an outer diameter of 180-189 mm
• Daystar Imaging FlatCap FC190
• felt pads for fitting adjustment
• manufacturer: Daystar Filters
• model: FlatCap FC190
• diffuser type: Gaussian
• divergence angle: 4° FWHM
• maximum field of view: 1° with Sun backlight
• wavelength transmission range: 350-800 nm
• exposure time adjustment factor: approximately 100×
• operating temperature range: -10 to 100°C
• compatible tube outer diameter: 180-189 mm
• mounting ring material: aluminum
• country of manufacture: USA
• SKU: FC190
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