Neutral extinction range 85% - 30%.
An Ideal filter for sun and Moon observation and contrast enhancement in planetary observations. To screw into any 1¼" - or 2" eyepieces - for example the Baader Herschel prism (#2956500P or 2956500V) Rotate the filter in its cell and adjustments can be made to the variable brightness of the image being viewed to suit current magnification.
Baader 2" Double Polarizing Filter - Ideal for solar and planetary observations.
For solar work in conjunction with Baader AstroSolar Safety Film or Baader Herschel Wedge Prism (never use any eyepiece filter for solar observation without objective front filter).
Rotatable filter cell allows continous adjustment of brightness for comfortable viewing.
Enhances contrast during planetary observation.
Non-ageing sealed coating edges. NOTE: for solar observation with a Herschel prism, you do not need a double polarizing filter. The reflected image of the sun from the Herschel prism is already partially polarized. If necessary please order the simple polarizing filter for further light attenuation. When used with an Astro Solar film, however, you need a double pole filter to continuously further mitigate the unpolarized sunlight.
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