Achromat & Semi-Apo filters

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Baader Contrast Booster Filter

Baader Contrast Booster Filter£54.00  -  £86.00

Based on the popular Baader Moon&Skyglow filter, this filter takes contrast enhancement and skyglow reduction to the maximum level possible from a filter.

Baader Fringe Killer Filter

Baader Fringe Killer Filter£52.00  -  £81.00

Minimizes unwanted blue/cyan fringing commonly seen through short-tube Chinese Achromat telescopes.

Baader Semi APO Filter

Baader Semi APO Filter£56.00  -  £96.00

Remarkably efficient and neutral, it practically disappears in use while removing most of the violet fringe! 

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