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Time and time again we were made aware of customers who were combining our Neodymium Moon and Skyglow filter with our Fringe Killers to deliver amazingly colour-corrected images to achromatic refractors. This combination however did produce reflections.
After analyzing these reports we developed our Baader Semi-APO filter with IR blocker, a reflection-free combination of the Moon & Skyglow with a stronger coating of the Fringe killer. This result was a virtually colour-neutral image without the blue and red halos (violet fringing) and an increase to image contrast.
Manufacturer | Baader Planetarium |
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Weight (kg) | 0.062 |
Transmission Range | multiple bands (see spectral image) |
Filter Thickness (without cell) | 1 mm |
AR-Coating | Phantom Coating® Group, planeoptically polished |
Filter Usage | CCD, Color Correction, IR-Cut |
Filter mounted | Mounted (LPFC 6mm) |
Type of Filter | Bandpass |
Single or Set? | Single Filter |
Filter shape | round |
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