Pay in 4 interest-free payments of $44.88 Learn more
Ships within 48 hours · Estimated delivery Jul 26 - Jul 31
3 PE Helium D3
but it will be reduced to where other techniques such as flatfielding or compositing can make the image acceptable
25” adapter)
Imaging Focal Reducer
All optics are EMD Coated to ensure maximum contrast
Astrozap Baader 347mm-357mm Solar Filter Accessories_Front Plates 3 PE Helium D3Astrozap Solar Filter With AstroSolar the Sun appears in neutral white. Other films and some glass filters produce a blurry bluish or reddish Solar image, thereby cutting part of the spectrum. Especially with an orange sun, it is very hard to see faculae regions which are visible predominantly in the blue wing of the spectrum. Due to it's neutral color balance, AstroSolar enables the use of various color (or interference) filters which allows the
US$ 28.70
US$ 185.94