- Premium assortment includes 20 of the best 1.25 inch color filters for planetary viewing
- Color filters make it easier to see planetary and lunar details
- Improve contrast of specific planetary and lunar features
- Includes sturdy metal case with die-cut foam interior for safe storage and transport
- Quick-reference guide indicates benefits of each filter at-a-glance
The Orion Premium 20-Piece Color Planetary Filter Set is an ideal accessory for any backyard stargazer who enjoys observing the planets of our solar system. Since planetary surface details and atmospheric phenomena reflect sunlight as contrasting colors, you can use color filters to accentuate subtle details on planets, comets, and the Moon by selectively increasing contrast between features and markings of different hues. Simply put: using various color filters makes planetary details easier to see. You can also "stack" multiple filters to combine filtration effects for unique results. Each filter can also be used with filter wheels and/or filter sliders for quick and convenient swapping during viewing sessions to compare differently filtered views. (Filter wheels and filter sliders sold separately.)A detailed summary of suggested uses for each filter is featured in the instruction manual that comes with the filter set, along with detailed transmission graphs for each of the 20 color filters. The Orion 1.25 inch Premium 20-Piece Color Planetary Filter Set includes: No. 8 Light Yellow filter No. 11 Yellow-Green filter No. 12 Yellow filter No. 15 Deep Yellow filter No. 21 Orange filter No. 23A Light Red filter No. 25 Red filter No. 29 Deep Red filter No. 30 Light Magenta filter No. 32 Magenta filter No. 38A Blue filter No. 44A Light Blue-Green filter No. 46 Deep Blue filter No. 47 Violet filter No. 56 Light Green filter No. 57 Medium Green filter No. 58 Green filter No. 64 Blue-Green filter No. 80A Medium Blue filter No. 82A Pale Blue filtering included metal storage case with die-cut foam interior keeps each filter secure, clean and safe during transport. A handy quick-reference guide found inside the metal storage case lid provides at-a-glance information indicating the best uses for each filter.