Baader Solar Continuum Filter - 1.25"

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Baader Solar Continuum Filter - 1.25"
Item # BA-FSOL-1
  • Applications: Solar Visual and Imaging, Star Testing
  • Function: Solar Image Enhancer
  • Compatibility: Any solar filter compatible telescope
  • Requirements for use: Any primary white light solar filter
  • Threading: 1.25" Round Cell


The Baader Planetarium Solar Continuum filter operates at a bandwidth of roughly 540nm without emission or absorption lines. These filters have been designed to focus your solar viewing experience in on solar granulation and sunspot details, producing top quality visual images of these features when used in conjunction with a compatible solar filter. Their function then is as an image enhancer to improve your solar experience when you already have a fully functional solar filter. The Solar Continuum filter from Baader Planetarium helps bring those fine solar details into sharp and clear focus, reducing contrast and purifying clarity of vision.

This filter can enhance both visual and imaging solar experiences, and can be used with any kind of telescope that it is possible to use a normal solar filter with. It is of the most utility in conjunction with SCT's and achromatic refracting telescopes, due to its property of completely excluding the red and blue wavelengths while focusing in on the peak visual wavelengths where the telescope optics are operating at their highest possible level, without false color chromatic aberration of any kind. As an added note, Baader recommends use of the Solar Continuum filter in conjunction with their own UV/IR cut filters for optimal performance when you are engaging in digital imaging.

The Solar Continuum filter is ideal for use as a star test filter due to its narrow bandass and complete blockage of extreme long and short wavelengths. It is perfect for testing refractors at their center design wavelength, and enables very accurate appraisals of optical quality to be made without the influence of spherochromatism or secondary collar error. The only requirements for using this filter in star testing would be an exceptionally bright star and the refracting telescope you wish to test.

Please Note: The Solar Continuum filter from Baader Planetarium is not a stand alone solar filter, and must be used in conjunction with a primary white light solar filter. For safety reasons, do not attempt to view the sun while using only this filter, or you are likely to incur permanent eye damage. It must be placed after a primary white light solar filter in your imaging or visual train.

Baader Planetarium Product Number: FSOL-1
Additional Information

Additional Information

Manufacturer Baader
Solar Accessory Type Filters
Warranty 1 Year Warranty

Customer Reviews 2 item(s)

An excellent filter for white light solar observing
This filter absolutely rocks when used with a Baader or Lunt Herschel wedge. The wedge with its ND3 filter by itself produces an image that is dazzlingly bright. The Baader solar continuum filter both tones this brightness down but also places the resulting view in a good wavelength for viewing with the human eye. However, if you don't like green, try the Baader polarization filter. When used in combination with a Herschel wedge's ND filter it can be rotated to provide variable polarization and variable brightness. Perfect for seeing fine detail within sunspots.
1= Houston, We Have a Problem & 5= It's Out of This World
Review by Kilgore Trout / (Posted on 6/19/2013)
A great mirror.
Had high hopes for this filter. Ended up returning it and getting something else. During an Astronomy Day at the College I past it around to the guys and they all said the same thing I said, "All I can see is my eyeball!" It's way too dark, can't see a thing on the surface of the Sun...yeah, that dark. Very reflective. Didn't try it with a blanket over my head, and maybe that was my mistake. Opt was really good on the return no fuss.
1= Houston, We Have a Problem & 5= It's Out of This World
Review by Dave / (Posted on 5/1/2013)
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  • Baader Solar Continuum Filter - 1.25"
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