Filters

Reduces overwhelming brightness and glare from the Moon Enhances contrast to reveal finer surface details Threads directly onto most standard 1.25...

Reduces overwhelming brightness from the Moon and bright planets Transmits only 13% of incoming light for comfortable viewing Fits all standard 1....

Isolates doubly-ionized oxygen lines (496nm and 501nm) Provides extreme contrast for planetary and emission nebulae Blocks the entire visual spect...

Isolates the 496nm and 501nm Oxygen III wavelengths Blocks the entire visual spectrum from 400nm to 700nm Ultra-hard, vacuum-deposited coatings pr...

Selectively blocks mercury vapor, sodium vapor, and natural sky glow Achieves over 97% transmission of critical nebula emission lines Features a m...

Selectively blocks light pollution from mercury and sodium vapor lights Achieves over 97% light transmission for maximum brightness 60nm bandpass ...

Adjustable light transmission from 1% to 40% Standard 1.25” filter format fits most eyepieces Reduces brightness without altering an object's natu...