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Superb Refractor Filter
List Price: $116.00
Our Price: $81.99
Savings: $34.01
Focal Length n/a
Eye Relief: n/a
Diameter: 1.25"
Apparent Field n/a
Product Weight: 7g

Quantity in Stock:1
Availability:: Usually Ships in 24 Hours
Product Code: 1501000

Description Technical Specs Extended Information
Baader Contrast Booster Filter 1.25"
A unique filter for many different astronomical tasks – incomparable in acuity
to combinations of generic color filters, made of raw polished glass – where
surface inaccuracy adds up in the optical wave front to an unbearable
degree! Especially designed to improve the ubiquitous beginners
telescopes – to provide a professional replacement for the
simple „dark green“ Moon & Solar-Filters made of „raw
polished“ glass.
  •  Eliminates the color error of economy
  • Refractors
  •  Clearly puts the real quality of the lens on display
  •  Removes the bluish „hue“ (= lack of
  • contrast) during lunar-, planetary-,
  • solar- and terrestrial observation!
  •  Strongly emphasizes surface detail on
  • Jupiter and Mars! If you have never seen
  • the GRS (Great Red Spot) on Jupiter –
  • with this filter you will!
  •  Over 95% transmission – provides a
  • bright, brilliant image compared to the
  • usual dark green color filters, used to
  • bring out detail on Jupiter.
  • Color recognition will be retained!
  •  The ultimate in lunar filters! Moon
  • (and Sun!) appear much more natural in
  • color (with a slight yellowish tint),
  • compared to the usual low priced dark
  • green Moon-filters, usually offered for
  • beginners telescopes.
  •  Completely removes distracting false
  • color and the resulting smeared
  • and washed out image details. You have
  • never ever seen the Moon or the Sun
  • (with AstroSolar Safety Film) so tack
  • sharp in an economy priced telescope!
  •  Blocks atmospheric „stray light“ (skyglow).
  • Sky-background turns into pitch black!
  •  Fits each and every standard filter thread;
  •  Combines with the (planeoptically
  • polished) BAADER Infrared Cut-Filter.
  • In this combination all blue scatter as well
  • as unfocused near infrared light is
  • completely removed – an absolute MUST
  • for digital imaging!
  •  Planeoptically polished, suitable for
  • being used in front of a binocular viewer,
  • or for afocal image projection during digital imaging (way in front
  • of the focal plane!)
  •  No deterioration of resolution with
  • magnifications of 200 x and more – as with „raw polished“
  • (flame polished) glass!
  •  Substrate (glass melt)
  • Neodymium doped glass
  •  Coating /rear face: 7-layer
  • hard-multicoating,
  • featuring 0,25% reflection
  •  Coating/front face: 23-layer
  • dielectric long pass blocker
  •  Ionbeam hardened coatings
  • on both faces, absolutely
  • scratch resistant – may be cleaned
  • any time without fear
  •  A significant part of City Light
  • Air Pollution, as well as Atmospheric
  • Airglow is removed from the
  • telescopic image.

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