Baader K-Line Filter 1¼" double stacked
Product.Nr.:
BP#2458355
Manufacturer: Baader Planetarium
334,00 EUR
incl. 19 % VAT
-
replenishment order
products condition NewCondition
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product description
W A R N I N G
Looking at or near the Sun will cause instant and irreversible damage to your eyes, including blindness. Eye damage is often painless, so there is no warning to the observer that damage has occurred until it is too late. Do not point a telescope or its viewfinder at or near the Sun. Do not look through a telescope or its viewfinder as it is moving.
The full aperture of any instrument that is pointed at the sun must be covered with a proper solar filter or filter/mask combination.
Children and Visitors should be supervised by an adult at all times when partaking in solar observation. Otherwise, keep solar equipment out of a child's and visitors reach to avoid accidental injury.
Please read all manuals before use!
For photographic imaging only!
- For solar work use only with pre-filter
- Calcium K-Filter
- For photographic imaging only!
- Planeoptically Polished
The Baader Planetarium Calcium K-Line Filter makes imaging of the sun in K-Line accessible to anyone with a telescope and digital camera or webcam. Baader's innovative double-stacked filter uses sophisticated coatings to produce a sharp 8nm wide bandpass, centered at 395nm. This bandpass provides ample contrast for high-resolution imaging of super granulation, flares, and other features that are prominent in CaK. Unlike small, dedicated, and expensive CaK telescopes, the Baader K-Line filter works with your existing telescope - at a small fraction of the cost. The Baader CaK may be used with virtually any telescope, of any aperture - Newtonian, SCT, Refractor, etc.
The Baader K-Line Filter is simply used just like any standard 1.25" thread-on eyepiece filter. It may be attached to an eyepiece for projection imaging, or directly to a camera's nosepiece for prime-focus. In addition, an objective pre-filter must be used at the telescope's entrance to reduce the energy that reaches the filter. For this purpose, a 200mm x 290mm sheet of Baader's AstroSolar Safety Photo Film (Photo ND=3.8) is provided with each K-Line filter.
Please note: The Baader K-Line filter is intended ONLY for imaging. It is not suitable for safe visual observation (the UV levels may pose an eye safety risk from prolonged observations). Due to the eye's low sensitivity and very poor resolving ability at 395nm, solar features in CaK are generally invisible for most observers - even through multi-thousand dollar sub-angstrom dedicated CaK etalons and telescopes. All of these instruments are intended primarily for imaging.
Baader K-Line Filter 1¼" double stacked
- HWB 8nm/CWL 390nm-398nm
- Planeoptically Polished
- Hard coated
- Baader-filterbox, combinable
Legend:
- 1¼" = Filterthread M28.5mm
- nm = Nanometer (bandwidth/FWHM)
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