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Baader Fringe Killer Color Correction Filter 1.25″

SKU: BAA2458370 Categories: , ,

The Baader Fringe Killer filter is 1.25″ in size and reduces colour fringing which increases contract and delicate details of lunar craters and planetart surfaces

Key features:

  • Prevents unwanted colour fringes in both the blue spectral range and in the NIR above 700 nm
  • This fine optical precision tool also allows inexpensive refractors to reach the promised imaging performance
  • suppresses over 50% of the interfering stray light in the blue spectral range – without changing the colour impression of the image

 

$149.00 inc GST

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Specifications:

 

Manufacturer Baader Planetarium
SKU (#) 2458370
EAN Code 4047825009494
Net weight (kg) 0.06
Transmission Range multiple bands (see spectral image)
Filter Thickness (without cell) 2 mm
AR-Coating Phantom Coating® Group, planeoptically polished
Filter size 1 25 inch
Filter Usage Color Correction, IR-Cut
Filter mounted Mounted (LPFC 6mm)
Type of Filter Bandpass
Single or Set? Single Filter
Filter shape round

 

Features:  (Fringe Killer)

  • Is due to its construction both visually and photographically a very valuable aid
  • Removes blue fringing as well as red fringing above 700nm.
  • Forms in the range between 450 to 480 nm with a plateau at around 50% transmission rate, the coating becomes more complex to produce than even the narrowest Nebula filters.
  • Achieved in the passband the highest transmission of all previously available colour fringe, whether filter or correction lens. From 486-656 nm all relevant deep sky wavelengths are completely transmitted. Visually this is enough light for even high magnifications.
  • Above of 656 nm (H-alpha), at 660nm, the transmission sinks very fast. In the NIR at 670nm, transmission is already down to 50%, and at 690nm it is already close to zero. The NIR is fully blocked up to 1150nm. This way, details on planets are shown much clearer when using CCD/CMOS-cameras, too.
  • Provides the brightest image of all industrially produced colour error correction systems. Thus the Fringe Killer is a must for even the smallest telescopes.
  • Removes blue fringing as well as red fringing above 700nm.
  • Cancels the devastating intensity of the disturbing purple fringing in a new form, which was never implemented to date in astronomical filters
  • Even weak nuances remain clearly visible in the planet due to the excellent colour balance.
  • In conjunction with an RG-610 Red Filter produces a narrowband Ha-pass filter with an only 70 nm wide windows and 95% light transmission – at an incredibly low price!
  • The combination with the Neodymium Skyglow Filter (with Phantom-Group-Coating) results in a balanced, breathtaking contrast to the observation of fine lunar and planetary details.
  • Planeoptically polished for perfect sharpness, even when the filter is assembled well before the focal point (or binocular digital camera insert).
  • No deterioration of resolution with high magnification – as would happen with flame-polished (raw polished) glass, commonly used for all sorts of filters!
  • Hight Quality Coating: Plasma-enhanced dielectric coatings result in hard, scratch-resistant and waterproof filters. Almost 50 layers on either side, carefully positioned as not to impair the optical quality of the substrate surface
  • Makes the performance of a simple f/8 economy refractor look like a classic f/15 Fraunhofer achromat. See it to believe it!

 

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