Shopping Options

Telescope Focal Ratio

1. f/4.1 - f/6 (1)
2. f/6.1 - f/8 (1)

Telescope Focal Length

1. 801mm - 1200mm (1)
2. 1601mm - 2000mm (1)

Filter Type

1. Clear/Luminance (2)
2. Color Correcting/ Violet Reduction (1)
3. Infrared (for UBVRI) (3)
4. UBVRI Filter Set (1)
5. UHC (6)
6. Ultra Violet (for UBVRI) (2)
7. Violet Reduction (3)
8. Color (7)
9. Comet (1)
10. H-Alpha (Non-Solar) (7)
11. H-Beta (7)
12. Moon/ Neutral Density (9)
13. Nebula (1)
14. Oxygen III (12)
15. Sky Glow/ City Light Suppression (9)
16. Sulfur II (4)
17. Variable Polarizer (7)

Non-Solar Filter Size & Mounting

1. 1.25" - Mounted (1)
2. 2" - Mounted (107)
3. 50mm - Round (Unmounted) (1)
4. 50mm - Square (Unmounted) (1)
5. Standard SCT/ Visual Back (1)

Wratten Number

1. 8 (Yellow) (2)
2. 11 (Yellow-Green) (1)
3. 12 (Deep Yellow) (1)
4. 15 (Deep Yellow) (2)
5. 21 (Orange) (1)
6. 23A (Light Red) (1)
7. 25 (Red Tricolor) (1)
8. 29 (Deep Red) (2)
9. 38A (Blue) (1)
10. 56 (Light Green) (2)
11. 58 (Green Tricolor) (1)
12. 80A (Blue) (2)
13. 82A (Pale Blue) (1)

Manufacturer

1. Astronomik (5)
2. AstroOptic (2)
3. Baader Planetarium (31)
4. Celestron (2)
5. Custom Scientific (1)
6. DayStar Filters (1)
7. DGM Optics (1)
8. Explore Scientific (5)
9. Farpoint Astronomical Research (1)
10. Lumicon International (28)
11. Lunt Solar Systems (1)
12. Optec (9)
13. Optolong (19)
14. Orion (7)
15. PrimaLuceLab (7)
16. Thousand Oaks Optical (4)

Product Series

1. Astronomik H-Alpha 12nm Nebular Filters (1)
2. Astronomik OIII CCD Filters (1)
3. Astronomik ProPlanet 642 BP IR Filters (1)
4. Baader LRGB and LRGBC Filters (2)
5. Baader Polarizing Filters (Ideal for Hershel Wedge) (2)
6. Optec Mounted 2 inch Diameter Round filters (9)
7. Orion SkyGlow Filters (1)
8. Orion UltraBlock Filters (1)
9. TO LP Visual Filters (2)
10. TO Narrowband Nebular Filters (1)
11. TO Oxygen III Filters (1)

Price

Range : $  -  $