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Neodymium Moon and Skyglowfilter with integrated IR-blocking coating and PG

• Selective contrast filter, suitable for all reflector telescopes
• Blocks in the visible spectral ranges targeted work in which street lamp light and scattered light brightened the sky particularly disturbing
  
• Selective blocking attenuates over radiation, but does not suppress the visibility of important color and brightness differences
  
• The transmission in the selected spectral regions is above 95%
  Fits all standard filter thread; be combined, for example, with the optically polished Baader Infrared Cut Filter! This makes it possible to prevent blur even by unfocused infrared radiation - an absolute must for digital photography
  
• May be without any loss of sharpness as a single filter in front of a binocular or for afocal projection with digital cameras (well before the focal point] is used, optically polished!
  
• When used with digital SLR cameras are much hotter star imaged because of the IR spectral range is blocked
  
• No sharp drop at magnifications above 200-fold, as in "raw polished" (flamed) glass
  
• Substrate (glass melt): Neodymium-doped glass color
  
• Remuneration: 7-layer multi-layer hard coating / IR block Dielectric Coating "boiling"
  
• Hard on both sides (ion beam-condensed), scratch-resistant, water resistant coating - can be cleaned as often