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Baader Premium Eyepiece Filter: Red, 610nm Longpass - 2" # FCFR-2 2458317

5.0 (2 Reviews) Read Reviews Write Review
Brand Baader Planetarium
Part Number 2458317
Availability available

Product Info

Manufacturer Description

Not just another colored filter! Finally, a set of serious tools for the planetary observer. Baader Planetarium's Premium Colored Filters bring a new level of quality and performance to planetary contrast enhancement.

Freedom from Ghost images, even when stacked. Striae-free substrates are polished parallel to 30 seconds of to avoid wedge errors. Finest 7-layer hard multicoatings on both faces feature 0.25% residual reflections (Baader filters are unique, no other colored filter incorporates anti-reflection multicoatings). The coatings are also different for each of the filters, in order to match the coating performance to the filter curve of each color. This maximizes the transmission and minimizes reflections.

Extremely High Transmissions result in maximum contrast and isolation of planetary details, even with smaller telescopes. Efficiencies of the three longpass filters (Red, Orange, and Yellow) peaks at 98%, and efficiencies of the three bandpass filters (Green, Blue, Dark Blue) achieve 70%.

Carefully designed spectral characteristics. Filters may be stacked without image degradation or ghosting, in order to provide even narrower passbands. Or, combine with any of the other Baader filters for interesting possibilities. For actual spectral traces, see Color Filter Transmission Curves.

No reduction in sharpness, even at high magnifications or when using the filter far ahead of the focal plane (ie, digital imaging, or in front of a diagonal or binoviewer).

Only one filter is needed for binoviewing. Only Baader colored filters have the optical quality necessary for use this far ahead of the focal plane.

Manufacturer part #: FCFR-2 or 2458317

Reviews

5.0 (Based on 2 Reviews) 100% of reviewers recommended this product.
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    1. Guest

      Skill Level
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      User Notes:
      Review by Daniel S.
      1519376247
      Feb 23, 2018

      5.0 Very nice

      Pros:

      Cons:

      Comments:

      Very nice

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

    2. crsrs

      crsrs New Member

      Skill Level
      Unknown
      Time with Product
      Unknown
      User Notes:
      Review by crsrs31 of San Tan Valley, AZ.
      1401494400
      May 30, 2014

      5.0 Talk about the "Red Planet!"

      Pros:

      Strong Construction,Lightweight,Quality Lenses,Easy to Use

      Cons:

      Comments:

      I bought this filter to use on Mars to help reveal more planetary details. It in fact does that very well. The saturated red color takes a bit to used to, but seeing the dark areas on the planets surface is a hoot!

      I chose the Baader filters because of their durable coatings. they have a special process that makes them easy to clean without damaging the them! I'm a neat freak about my astro stuf, so this was an important feature to me.

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

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