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Review Summary
2008-01-20T19:00:00
It might be suitable for slower scopes but the images in my f/4.7 dobsonian turned out to be way too bright to use it. I get better results with red 25A filter at 14% transmission.
Martzell
<B>#21 Orange (46% transmission) -</B> Reduces or blocks transmission of blue-green wavelengths. Use on Jupiter and Saturn to enhance detail in the belts and polar regions.
Sharpens boundaries between yellow-orange areas and blue-green regions on Mars, resulting in a darkening of edge-detail in the maria.