WHEN CHOOSING YOUR COLOR FILTER, USE THE FILTER NUMBER# IN THE FILTER DESCRIPTION CHART BELOW.

#12A Light Yellow

(74% transmission)

This filter enhances red and orange features on Jupiter and Saturn, while blocking blue and green wavelengths. It also lightens the red and orange features on Mars, while reducing, or blocking, the transmission of blue and green areas, this increases the contrast between the two. It also enhances the blue clouds in the Martian atmosphere.  This filter is also very nice for increasing contrast in lunar features.
 

#23A Light Red

(25% transmission)

 This is another great filter for use on Mars, Jupiter, and Saturn,  It performs many of the same functions as the #21, but again, with more contrast than do either of these. It is also a great one to try for daylight observations of Mercury and Venus, because it increases the contrast between these planets and the bright blue sky.
 

#58 Green

(24% transmission)

This filter strongly rejects red and blue wavelengths and increases their contrast on the lighter parts of the surface of Jupiter. It is also useful for enhancing the cloud belts and polar regions on Saturn. It does a fantastic job on increasing the contrast in Mars polar ice caps and also does a reasonable job of increasing the contrast of atmospheric features on Venus.

#47H Violet

(18% transmission)

This filter strongly rejects red, yellow, and green wavelengths, making it a good one to use on the Martian polar ice caps. It is the filter of choice for observations of Venus because of its low light transmission and its ability to enhance upper atmosphere phenomena.

#25A Red

(14% transmission)

The #25A filter strongly blocks the transmission of blue and green wavelengths, which result in very sharply defined contrast between the cloud formations and the lighter-toned surface features on Jupiter. This filter is also quite useful for definition of the Martian polar ice caps and maria.  Try this one on Venus. Not only does it reduce the light glare, it really does some interesting things to the clouded Venusian atmosphere.

#80A blue

 (30% transmission)

This filter is the best and most popular for the study of detail on Jupiter and Saturn. It enhances the contrast of rills and festoons in Jupiter's cloud belts, as well as details of the GREAT RED SPOT. It also brings out detail in Saturn's belts and polar features. This filter is also very useful for lunar observing.   Try this filter to split Antares.  It works very well for this purpose, especially when the two stars are at their maximum separation.
 

#82B Light Blue

(73% transmission)

This filter works well on Jupiter, Mars, Saturn and the moon. Its pale blue color enhances areas of low contrast and avoids significant reduction of overall light level at the same time.  Try this one on bright galaxies, particularly face-on spirals. On M51. The detail in the spiral arms was quite pronounced. It has been  tried on a number of bright galaxies and it really does a great job in increasing the detail in galactic structure.  Also, try this one to split Antares. 

#11 Light Green

(53% transmission

 This filter is excellent for the observation of Martian polar ice caps and the yellow tinted dust storms on the planet's surface. It also increases the contrast of the red and blue regions in Jupiter's atmosphere and cloud belts. This filter is another one that's great for lunar observing.
 

#21-Orange

 (46% transmission)

The #21 orange reduces transmission of blue and green wavelengths, thus increasing the contrast between these areas and red, yellow or orange areas. because of this, it is great on Mars. It sharpens the boundaries between these areas on the planet's surface. I also use it on Jupiter to sharpen the contrast in the belts and to bring out the GREAT RED SPOT. It will also slightly increase surface details on Saturn.