| Catagory | Type | Name | Comments |
| Comets | Color | #38A Dark Blue 17% | Enhances bright comet tails |
| Comets | Color | #8 Light Yellow 83% | Tail and coma detail |
| Comets | Color | #82A Light Blue 73% | Comet tail detail |
| Comets | Contrast | Comet | Gaseous comets reveal full extent of tails |
| Diffuse Nebulae | Contrast | Broadband | Combats urban light pollution, enhances views of emission nebula, M1 and others |
| Diffuse Nebulae | Contrast | Narrowband | Combats high level light pollution, maximum contrast for emission nebula, best in dark sky, M1, M8, M17, M42/43 and other extended nebula |
| Diffuse Nebulae | Contrast | Oxygen-III | M16, M17, M42, NGC7293, and others |
| Faint Nebulae | Contrast | Broadband | Combats urban light pollution, Rosette Nebula, North American Nebula |
| Faint Nebulae | Contrast | Hydrogen Beta | Extremely faint nebula, best with large aperture, Horsehead Nebula B33/IC434, Cocoon Nebula, California Nebula |
| Faint Nebulae | Contrast | Narrowband | Enhanced contrast for nebula, best in dark sky |
| Faint Nebulae | Contrast | Oxygen-III | Combats light pollution, Veil Nebula and others best with O-III in dark sky |
| Galaxies and Star Clusters | Color | #82A Light Blue 73% | Structure and detail enhancement in bright galaxies |
| Galaxies and Star Clusters | Contrast | Broadband | Combats urban light pollution for enhanced views, M11, M13, M33, M101 |
| Jupiter | Color | #11 Yellow Green 78% | Red Spot, cloud bands, loops, ovals and festoons, increases red and blue contrast, apertures 10" and larger |
| Jupiter | Color | #12 Yellow 74% | Red and orange features enhanced, strong blue contrast, belts, apertures 6" and larger |
| Jupiter | Color | #15 Deep Yellow 67% | Belt details |
| Jupiter | Color | #21 Orange 46% | Enhanced detail for Red Spot, belts, cloud bands, loops, ovals and festoons, polar regions |
| Jupiter | Color | #23A Light Red 25% | Acts as #21 with stronger contrast for blue-green, clouds, belts, polar regions, Galilean Moon transits, 6" aperture and larger |
| Jupiter | Color | #25A Red 14% | Belts, increased contrast of blue and enhanced light areas in clouds and on disc, Galilean Moon transits, 8" aperture and larger |
| Jupiter | Color | #29 Deep Red 8% | Belts, Galilean Moon transits, 8" aperture and larger |
| Jupiter | Color | #38A Dark Blue 17% | Reddish belt contrast increased, enhances detail for Red Spot, disc contrast strong with red and orange areas |
| Jupiter | Color | #56 Light Green 53% | Increases contrast in red and blue atmosphere and belts, enhances low contrast features, clouds |
| Jupiter | Color | #58 Green 24% | Red Spot, cloud bands, loops, ovals and festoons, increases red-blue contrast versus light area enhancement, 8" aperture and larger |
| Jupiter | Color | #8 Light Yellow 83% | Belts, orange and red zones, apertures 8" and smaller |
| Jupiter | Color | #80A Medium Blue 30% | Red Spot detail, belts, cloud bands, loops, rilles, light ovals and festoons, 8" aperture and larger |
| Jupiter | Color | #82A Light Blue 73% | Low contrast features enhanced, clouds, similar to #80A but lighter, reduces refractor chromatic abberation |
| Jupiter | Contrast | Anti-Fringing Filter | For use with achromatic refractors, removes blue-violet halo |
| Jupiter | Lunar | Neutral Density 13% | Cuts entire spectrum down to 13% transmission, reduces glare and irradiation without adding color, for 4" and larger objectives |
| Jupiter | Lunar | Neutral Density 25% | Cuts entire spectrum down to 25% transmission, reduces glare and irradiation without adding color |
| Jupiter | Lunar | Neutral Density 50% | Cuts entire spectrum down to 50% transmission, reduces glare and irradiation without adding color |
| Jupiter | Lunar | Variable Polarizer | Adjustable transmission values can be as low as 1% to as high as 40%, reduces glare during day or night viewing |
| Jupiter | Off-Axis Cover | Offset hole about 1/3 of aperture | Not a filter, but achieves the similar effect as a 15% or darker Neutral Density filter |
| Mars | Color | #11 Yellow Green 78% | Increased contrast of maria and ice caps, apertures 10" and larger |
| Mars | Color | #12 Yellow 74% | Increased blue-green feature contrast, lightens red-orange, maria, apertures 6" and larger |
| Mars | Color | #15 Deep Yellow 67% | Surface feature enhancement and polar caps, clouds, maria |
| Mars | Color | #21 Orange 46% | Penetrates atmosphere, reduces glare, enhances reddish surface details and mottling between yellow-orange and blue-green in maria |
| Mars | Color | #23A Light Red 25% | On 6" and larger aperture acts as #21, penetrates atmosphere, maria, blue-green feature has stronger contrast, ice caps |
| Mars | Color | #25A Red 14% | Reveals reflective surface detail of plains and maria, polar caps, 8" aperture and larger |
| Mars | Color | #29 Deep Red 8% | Increases contrast of maria, polar caps, surface detail, 8" aperture and larger |
| Mars | Color | #30 Magenta 58% | Blocks green features |
| Mars | Color | #38A Dark Blue 17% | Clouds, haze and dust storms revealed |
| Mars | Color | #47 Violet 3% | Polar caps highlighted, 8" aperture and larger |
| Mars | Color | #56 Light Green 53% | Polar cap detail and yellow-tinted dust storms, clouds |
| Mars | Color | #58 Green 24% | Strong contrast of polar cap detail and melt lines, 8" aperture and larger |
| Mars | Color | #8 Light Yellow 83% | Increased contrast of maria, apertures 8" and smaller |
| Mars | Color | #80A Medium Blue 30% | High clouds especially at limb, polar caps, 8" aperture and larger |
| Mars | Color | #82A Light Blue 73% | Clouds and haze with bright image, low contrast features, reduces refractor chromatic abberation |
| Mars | Color | #85 Medium Orange 63% | Reddish surface details |
| Mars | Contrast | Anti-Fringing Filter | For use with achromatic refractors, removes blue-violet halo |
| Mars | Contrast | Broadband | Polar cap detail |
| Mars | Contrast | Mars Type-A | Enhances green and red features, natural color polar caps |
| Mars | Contrast | Mars Type-B | Similar to #21 Orange with broadband contrast |
| Mars | Lunar | Neutral Density 13% | Cuts entire spectrum down to 13% transmission, reduces glare and irradiation without adding color, for 4" and larger objectives |
| Mars | Lunar | Neutral Density 25% | Cuts entire spectrum down to 25% transmission, reduces glare and irradiation without adding color |
| Mars | Lunar | Neutral Density 50% | Cuts entire spectrum down to 50% transmission, reduces glare and irradiation without adding color |
| Mars | Lunar | Variable Polarizer | Adjustable transmission values can be as low as 1% to as high as 40%, reduces glare during day or night viewing |
| Mars | Off-Axis Cover | Offset hole about 1/3 of aperture | Not a filter, but achieves the similar effect as a 15% or darker Neutral Density filter |
| Mercury | Color | #21 Orange 46% | Helpful for viewing phases in orange twilight |
| Mercury | Color | #23A Light Red 25% | Increases contrast between sky and planet during daylight or twilight, enhances contrast, 6" aperture and larger |
| Mercury | Color | #25A Red 14% | Increases contrast between sky and planet during daylight or twilight, enhances features, 8" aperture and larger |
| Mercury | Color | #29 Deep Red 8% | Increases contrast between sky and planet during daylight or twilight, enhances features, as #25A only darker, 8" aperture and larger |
| Mercury | Color | #47 Violet 3% | Enhances contrast and detail, 8" aperture and larger |
| Mercury | Off-Axis Cover | Offset hole about 1/3 of aperture | Not a filter, but achieves the similar effect as a 15% or darker Neutral Density filter |
| Moon | Color | #11 Yellow Green 78% | Enhancement of features with apertures 10" and larger, helps cancel blue chromatic abberation |
| Moon | Color | #12 Yellow 74% | Increases contrast with apertures 6" and larger, reduces glare |
| Moon | Color | #15 Deep Yellow 67% | Enhances rilles, strata and terminator, cuts glare, increases contrast |
| Moon | Color | #47 Violet 3% | Greatly contrasts detail, 8" aperture and larger |
| Moon | Color | #56 Light Green 53% | Generally enhances detail |
| Moon | Color | #8 Light Yellow 83% | Enhancement of features with apertures 8" and smaller, cancels blue chromatic aberration with refractors |
| Moon | Color | #80A Medium Blue 30% | Very useful contrast enhancer and glare reducer, 8" aperture and larger |
| Moon | Color | #82A Light Blue 73% | Enhances low contrast areas while retaining brightness, reduces refractor chromatic abberation |
| Moon | Contrast | Anti-Fringing Filter | For use with achromatic refractors, removes blue-violet halo |
| Moon | Lunar | Neutral Density 13% | Cuts entire spectrum down to 13% transmission, reduces glare and irradiation without adding color, for 4" and larger objectives |
| Moon | Lunar | Neutral Density 25% | Cuts entire spectrum down to 25% transmission, reduces glare and irradiation without adding color |
| Moon | Lunar | Neutral Density 50% | Cuts entire spectrum down to 50% transmission, reduces glare and irradiation without adding color |
| Moon | Lunar | Variable Polarizer | Adjustable transmission values can be as low as 1% to as high as 40%, good for 1/4 Moon daytime viewing |
| Moon | Off-Axis Cover | Offset hole about 1/3 of aperture | Not a filter, but achieves the similar effect as a 15% or darker Neutral Density filter |
| Multiple Stars | Contrast | Oxygen-III | Antares and other unbalanced binaries/multiples |
| Multiple Stars | Lunar | Neutral Density 13% | Especially with binaries with brighter primary, for 4" and larger objectives |
| Neptune | Color | #11 Yellow Green 78% | Improves visible detail, apertures 10" and larger |
| Neptune | Color | #12 Yellow 74% | Detail, apertures 6" and larger |
| Neptune | Color | #15 Deep Yellow 67% | Dusky detail |
| Neptune | Color | #8 Light Yellow 83% | Dusky detail, improved resolution of detail, apertures 10" and larger |
| Planetary Nebulae | Contrast | Broadband | Combats urban light pollution for enhanced views |
| Planetary Nebulae | Contrast | Narrowband | Combats high level light pollution, best in dark sky, M27, M57, NGC7009 |
| Planetary Nebulae | Contrast | Oxygen-III | Faint planetary nebula, combats light pollution, M27, M57, NGC 7293, Abell 33, Jones 1 |
| Reflection Nebulae | Contrast | Broadband | Combats urban light pollution for enhanced views, M20, M45 |
| Saturn | Color | #11 Yellow Green 78% | Ring brightness details, cloud detail, Cassini Division, increased red and blue contrast, apertures 10" and larger |
| Saturn | Color | #12 Yellow 74% | Cloud detail, increased blue contrast with red and orange enhancement, belts, apertures 6" and larger |
| Saturn | Color | #15 Deep Yellow 67% | Subtle details enhanced, belt details, Cassini Division |
| Saturn | Color | #21 Orange 46% | Enhanced belt, festoon and polar region details |
| Saturn | Color | #23A Light Red 25% | Similar to #21 but with stronger contrast of blue-green areas, belt details, clouds, polar region details, 6" aperture and larger |
| Saturn | Color | #25A Red 14% | Ring brightness details, cloud details, 8" aperture and larger |
| Saturn | Color | #29 Deep Red 8% | Cloud belt details, 8" aperture and larger |
| Saturn | Color | #38A Dark Blue 17% | Cloud, ring and belt details |
| Saturn | Color | #47 Violet 3% | Ring details, 8" aperture and larger |
| Saturn | Color | #56 Light Green 53% | Cloud belt details |
| Saturn | Color | #58 Green 24% | Ring brightness details, cloud, belt and polar region details, 8" aperture and larger |
| Saturn | Color | #8 Light Yellow 83% | Belts, apertures 8" and smaller |
| Saturn | Color | #80A Medium Blue 30% | Ring brightness details, belt details and polar region phenomena, 8" aperture and larger |
| Saturn | Color | #82A Light Blue 73% | Low contrast features enhanced with bright image, clouds, reduces refractor chromatic abberation |
| Saturn | Contrast | Anti-Fringing Filter | For use with achromatic refractors, removes blue-violet halo |
| Saturn | Lunar | Neutral Density 13% | Cuts entire spectrum down to 13% transmission, reduces glare and irradiation without adding color, for 4" and larger objectives |
| Saturn | Lunar | Neutral Density 25% | Cuts entire spectrum down to 25% transmission, reduces glare and irradiation without adding color |
| Saturn | Lunar | Neutral Density 50% | Cuts entire spectrum down to 50% transmission, reduces glare and irradiation without adding color |
| Saturn | Lunar | Variable Polarizer | Adjustable transmission values can be as low as 1% to as high as 40%, reduces glare during day or night viewing |
| Saturn | Off-Axis Cover | Offset hole about 1/3 of aperture | Not a filter, but achieves the similar effect as a 15% or darker Neutral Density filter |
| Sun | Solar | Calcium K | Only in dedicated instruments, views a lower level of the Chromosphere than H-Alpha |
| Sun | Solar | Hydrogen Alpha | Red image of Sun, very good for surface detail and limb features, can be a dedicated instrument or add-on filter system |
| Sun | Solar | White Light Black Polymer | Yellow image of Sun, good for viewing eclipses and sunspots, durable & protective material within filter |
| Sun | Solar | White Light Glass | Yellow image of Sun, good for viewing eclipses and sunspots, durable and minor damage can be repaired |
| Sun | Solar | White Light Mylar Film | Blue-white image of Sun, good for viewing eclipses and sunspots, can be adjusted to yellow color with #21 or #23A Color filter, great performance for the cost |
| Uranus | Color | #11 Yellow Green 78% | Improves visible detail, apertures 10" and larger |
| Uranus | Color | #12 Yellow 74% | Detail, apertures 6" and larger |
| Uranus | Color | #15 Deep Yellow 67% | Dusky detail |
| Uranus | Color | #8 Light Yellow 83% | Dusky detail, improved resolution of detail, apertures 10" and larger |
| Venus | Color | #11 Yellow Green 78% | Clouds |
| Venus | Color | #15 Deep Yellow 67% | Cloud enhancement |
| Venus | Color | #23A Light Red 25% | Increases contrast between sky and planet during daylight or twilight, improves contrast on clouds and terminator, 6" aperture and larger |
| Venus | Color | #25A Red 14% | Reduces glare, increased planet-sky contrast, may show cloud markings, terminator detail, 8" aperture and larger |
| Venus | Color | #29 Deep Red 8% | Increased planet-sky contrast, clouds, terminator detail, 8" aperture and larger |
| Venus | Color | #38A Dark Blue 17% | Increases contrast of subtle cloud markings |
| Venus | Color | #47 Violet 3% | Reduces glare, upper atmosphere cloud phenomena, 8" aperture and larger, good performer on Venus |
| Venus | Color | #58 Green 24% | Increases contrast of atmosphere clouds, 8" aperture and larger |
| Venus | Color | #80A Medium Blue 30% | Clouds, stack with #58 for phase viewing, 8" aperture and larger |
| Venus | Contrast | Anti-Fringing Filter | For use with achromatic refractors, removes blue-violet halo |
| Venus | Lunar | Neutral Density 13% | Cuts entire spectrum down to 13% transmission, reduces glare and irradiation without adding color, for 4" and larger objectives |
| Venus | Lunar | Neutral Density 25% | Cuts entire spectrum down to 25% transmission, reduces glare and irradiation without adding color |
| Venus | Lunar | Neutral Density 50% | Cuts entire spectrum down to 50% transmission, reduces glare and irradiation without adding color |
| Venus | Lunar | Variable Polarizer | Adjustable transmission values can be as low as 1% to as high as 40%, reduces glare during day or night viewing |
| Venus | Off-Axis Cover | Offset hole about 1/3 of aperture | Not a filter, but achieves the similar effect as a 15% or darker Neutral Density filter |
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