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Baader LRGB CCD Filter Set - 65 mm Square Unmounted - FLRGB-SQ65

SKU: BAD-FLRGB-SQ65

Regularly stocked item that is on order with the manufacturer and on its way to our warehouse. Expected to arrive within 5-10 business days.

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Baader LRGB CCD Filter Set
65 mm X 3 mm Square Unmounted





The Baader Planetarium LRGB 65 mm Square CCD Filter Set delivers improved color separation and image quality without annoying halos. Baader has created excellent CCD filters through an extensive coating-stack design and testing program. Baader has partnered with the world's leading thin film coating company to produce transmission curves that border on the ideal. Simply put - Baader's LRGB anti-reflection filters deliver improved images for your astrophotography! Unfortunately, their obvious improvements will likely cause many astro-imagers to re-take images of their favorite objects. This set contains four square 65 mm unmounted filters: one each of red, green, blue colors, plus a UV/IR-Cut filter (luminance). Each of the LRGB 65 mm square filters are 3 mm thick.




Their ultra steep cutoffs and high transmission, >95% allows Baader to achieve something no other RGB filter set has - they are able to effectively separate the important H-Beta and O-III lines. The Baader Blue filter passes virtually all of the H-Beta lines, while the Green filter is able to capture all of the O-III line, without encroaching into the H-Beta line. None of the light is wasted by either filter. In this way, O-III is represented as it should be, a teal (blue-green) color, and H-Beta is captured solely in the blue. This novel degree of separation is achieved, along with high transmission for both lines. In addition, the Green and Red filter passbands nearly touch, leaving only a sharp notch to block out the primary Mercury/Sodium light pollution line at 580 nm. The high transmission everywhere else delivers the shortest combined exposures possible with every detector.




The high optical quality of the Baader narrowband filters guarantees no loss in sharpness or contrast. Each substrate is fine-optically polished plane parallel to deliver a smooth and accurate 1/4 wavefront over the entire surface. Each filter is blocked and polished individually, not cut out of a larger plate of glass. The special custom polishing operation sets Baader filters apart from other filter manufacturers.




Coatings are professionally applied to each Baader CCD filter by the most sophisticated equipment available today, ensuring high consistency for bandpass cutoffs, transmission, and out of band blocking. The anti-reflection coatings are evenly balanced on both sides of the filters to reduce surface stresses and prevent deformation of the substrates. The ultra-hard ion beam deposition ensures the coatings will never degrade from use or normal cleaning. Baader coats each LRGB filter individually. Baader filters remain sealed at their coating edges for a long life without degradation. Though more costly, this process avoids coating failures resulting when filters are "biscuit cut" from bulk-coated sheet glass, leaving ragged edges for moisture to penetrate, and cause coatings to peel. Baader filters are intended for a lifetime of real-world use!


Description
Description

Baader LRGB CCD Filter Set
65 mm X 3 mm Square Unmounted

The Baader Planetarium LRGB 65 mm Square CCD Filter Set delivers improved color separation and image quality without annoying halos. Baader has created excellent CCD filters through an extensive coating-stack design and testing program. Baader has partnered with the world's leading thin film coating company to produce transmission curves that border on the ideal. Simply put - Baader's LRGB anti-reflection filters deliver improved images for your astrophotography! Unfortunately, their obvious improvements will likely cause many astro-imagers to re-take images of their favorite objects. This set contains four square 65 mm unmounted filters: one each of red, green, blue colors, plus a UV/IR-Cut filter (luminance). Each of the LRGB 65 mm square filters are 3 mm thick.

Their ultra steep cutoffs and high transmission, >95% allows Baader to achieve something no other RGB filter set has - they are able to effectively separate the important H-Beta and O-III lines. The Baader Blue filter passes virtually all of the H-Beta lines, while the Green filter is able to capture all of the O-III line, without encroaching into the H-Beta line. None of the light is wasted by either filter. In this way, O-III is represented as it should be, a teal (blue-green) color, and H-Beta is captured solely in the blue. This novel degree of separation is achieved, along with high transmission for both lines. In addition, the Green and Red filter passbands nearly touch, leaving only a sharp notch to block out the primary Mercury/Sodium light pollution line at 580 nm. The high transmission everywhere else delivers the shortest combined exposures possible with every detector.

The high optical quality of the Baader narrowband filters guarantees no loss in sharpness or contrast. Each substrate is fine-optically polished plane parallel to deliver a smooth and accurate 1/4 wavefront over the entire surface. Each filter is blocked and polished individually, not cut out of a larger plate of glass. The special custom polishing operation sets Baader filters apart from other filter manufacturers.

Coatings are professionally applied to each Baader CCD filter by the most sophisticated equipment available today, ensuring high consistency for bandpass cutoffs, transmission, and out of band blocking. The anti-reflection coatings are evenly balanced on both sides of the filters to reduce surface stresses and prevent deformation of the substrates. The ultra-hard ion beam deposition ensures the coatings will never degrade from use or normal cleaning. Baader coats each LRGB filter individually. Baader filters remain sealed at their coating edges for a long life without degradation. Though more costly, this process avoids coating failures resulting when filters are "biscuit cut" from bulk-coated sheet glass, leaving ragged edges for moisture to penetrate, and cause coatings to peel. Baader filters are intended for a lifetime of real-world use!

Specifications
Specifications
Model Number FLRGB-SQ65
Single Filter, Set, or Accessory Filter Set
Filter Type RGB
Filter Size 65 mm
Filter Shape Square
Warranty One (1) Year
What's in the Box?
What's in the Box?
  • 65 mm square, 3 mm thick Red filter
  • 65 mm square, 3 mm thick Green filter
  • 65 mm square, 3 mm thick Blue filter
  • 65 mm square, 3 mm thick UV/IR-Cut filter (luminance)
  • Baader 65 mm Square LRGB Filter Set
  • Baader LRGBC Filter Transmission Chart
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