#23A Light Red- The red filters are made from renowned Schott and Hoya optical glass and allow for maximum contrast on viewing planetary and lunar detail; #12 Yellow - The yellow filter improves contrast on Moon craters; on Mars; channels and polar caps become more apparent
#80A blue - The blue filter is suitable for Moon; Mars; Jupiter and Saturne observation; it improves contrast on faint areas without affecting the planet's brightness; which is why this filter is often used in combination with others
Variable Grey Polarizing Filter - The variable polarizing filter allows for selective adjustment of brightness; which is useful for terrestrial observation; light transmission of polarizing filters is between 1% and 40%
Astromania 1.28inch Mars Filter is an excellent multi-purpose filter for viewing all features of Mars; polar caps stand out prominently; landscape features like mare and highland mountain ranges are easily separated and resolved; polar hazes and cloud cover become visible
Fully-coated Mars filter: An invaluable tool for any planetary viewer with an interest in the red planet; increases contrast to bring out subtle details on the disc of the red planet