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Enhance your viewing with the latest in multi-layer coating technology. These filters greatly enhance contrast when viewing deep sky objects. These filters reject manmade and natural light pollution from mercury vapor lights, high pressure sodium lights and natural airglow. Available for 1.25" and 2" eyepieces and mounted in color coded cells. Manufactured in the U.S.
LP-1 Broadband (Black Cell) 1.25" $95.00, 2" $185.00
LP-2 Narrowband (Blue cell) 1.25" $95.00, 2" $185.00
LP-3 Oxygen III (Green cell) 1.25" $95.00, 2" $185.00
LP-4 Hydrogen Beta (Red cell) 1.25" $95.00, 2" $185.00
Filters are listed on the following table with the most beneficial listed first.
LP-1 Broadband - Deep Sky or "Light Pollution"
LP-2 Narrowband - UHC
LP-3 Oxygen 3 - OIII
LP-4 H-Beta - Hb
|
Object |
Examples |
Visual (light polluted) |
Visual (dark site) |
| Stars and Clusters | M-13, M-11 | LP-1 Broadband | none, LP-1 Broadband |
| Diffuse Nebula | M-8 (Lagoon), M-16 (Swan) | LP-1 Broadband, LP-2 UHC, LP-3 O3 | LP-1 Broadband, LP-2 UHC |
| Planetary Nebula | M-57 (Ring), M-27 (Dumbbell) | LP-1 Broadband, LP-2 UHC, LP-3 O3 | none, LP-2 UHC, LP-3 O3 |
| Faint Planetary | NGC-7293, Abell 33 | LP-3 O3, LP-2 UHC | LP-2 UHC, LP-3 O3 |
| Reflection Nebula | M-45 Pleiades, M-20 Trifid | none, LP-1 Broadband, LP-2 UHC | none, LP-1 Broadband, LP-2 UHC |
| Faint Nebula | Veil, Rosette | LP-3 O3, LP-2 UHC | LP-2 UHC, LP-3 O3 |
| Galaxies | M-101, M-33 | none, LP-1 Broadband | none |
| H-Beta Emission | California, Horse Head | H-Beta | H-Beta |