Baader Planetarium Solar Continuum Filter, 2" FSOL-2

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Price: $159.00    

Product Feature

• The Baader Solar Continuum Filter enhances the visibility of solar granulation and sunspot details.
• Boosts Contrast and reduces effects of atmospheric turbulence
• Works with all telescopes
• The Baader Solar Continuum Filter Works for both visual observation and imaging
• Can be used a star test filter

Product Description

Baader Solar Continuum Filter 2"

Superb Baader Planetarium Quality

The Baader Solar Continuum Filter is truly a unique product from Baader Planetarium. A great accessory for solar observation the Baader Solar Continuum Filter is a great compliment to any expensive solar telescope.

The new Baader Solar Continuum filter is designed to enhance the visibility of solar granulation and sunspot details. By transmitting a specific spectral region around 540nm, free of emission and absorption lines, the Solar Continuum filter is able to boost contrast and reduce the effects of atmospheric turbulence. With the Solar Continuum filter in place, images snap to focus, and granulation becomes regularly visible. Details at the limit of visibility become easier to hold, and image motion reduced.

The Solar Continuum filter works well in all types of telescopes, for both visual and imaging. Users of SCTs and achromatic refractors will find it particularly beneficial, as it completely excludes the red and blue wavelengths, and centers on the peak visual wavelengths where the telescope optics are sharpest and free from chromatic aberrations. For digital imaging, we also recommend the Continuum filter be combined with our UV/IR Cut Filter (to completely cut the defocused far infrared wavelengths).

The Solar Continuum filter also makes the perfect star test filter. It's narrow bandpass and complete blockage of longer and shorter wavelengths make it superior to standard green colored filters for testing refractors at their center design wavelength (and peak visual wavelength). With this filter, more accurate appraisals of optical quality can be made, without the effects of spherochromatism or secondary color error. Due to the narrow 10nm bandpass, star testing through the Solar Continuum filter will require a bright test star.

As with all Baader Planetarium Filters, the Solar Continuum possesses all the trademark Baad

Baader Planetarium Solar Continuum Filter, 2" FSOL-2 Review

What a lovely filter. I combined it with a 5X solar filter on my 200mm camera lens and the view through the finder was excellent. Once I uploaded the picture I had to crop a lot of the image away to increase the size of the sun in the frame. Once I did this I saw dramatic pixelation. It took me a bit to realize that only green light was striking the Bayer filter on the image sensor. This was decreasing the effective resolution compared to the full spectrum solar filter. So it works as advertised! Unfortunately it didn't yield good results for what I was wanting. If you are using a good telescope or binoculars I'm sure it will serve you well. Now to figure out what I'm going to use this filter for...

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