Shopping Options

Barrel Or Connection Size

1. 1.25" Barrel (14)
2. 1.25"/ 2" Variable (7)
3. 2" Barrel (25)

Eyepiece Design

1. Ethos (3)
2. Wide Angle (47)

Eyepiece Eye Relief

1. Long: 16mm or More (58)
2. Moderate: 11mm - 15mm (17)
3. Short: Less than 10mm (1)

Eyepiece Focal Length

1. 0mm - 5mm (4)
2. 10.1mm - 20mm (31)
3. 20.1mm - 30mm (18)
4. 30.1mm - 40mm (22)
5. 5.1mm - 10mm (5)
6. 50.1mm - 60mm (1)
7. Zoom Eyepiece (1)

Eyepiece Special Feature

1. Argon Purged (7)
2. Fog Proof (22)
3. Nitrogen Purged (22)
4. Waterproof (29)

Filter Wheel Control

1. Manual (2)
2. Motorized (7)

Style of Filter Holder

1. Wheel (18)

For Filters Of What Size?

1. 1.25" Mounted (34)
2. 2" (50.8mm) Round Mounted (2)
3. 2" (50.8mm) Round Unmounted (2)
4. 2" (50.8mm) Square Unmounted (4)
5. 25mm Unmounted (1)
6. 28mm Unmounted (4)
7. 31mm Unmounted (1)
8. 36mm Unmounted (6)
9. 65mm Squared Unmounted (5)

Filter Slots Available

1. 10 (18)
2. 11 (1)
3. 20 (3)
4. 5 (44)
5. 6 (1)
6. 7 (6)
7. 8 (5)
8. 9 (2)

Non-Solar Filter Size & Mounting

1. 1.25" - Mounted (145)
2. 2" - Mounted (88)
3. 27mm - Unmounted (1)
4. 28mm - Unmounted (4)
5. 31mm - Mounted (1)
6. 31mm - Unmounted (37)
7. 36mm - Mounted (2)
8. 36mm - Unmounted (42)
9. 49mm - Round (Unmounted) (2)
10. 50mm - Round (Mounted) (10)
11. 50mm - Round (Unmounted) (64)
12. 50mm - Square (Unmounted) (52)
13. 65mm - Square (Unmounted) (23)
14. 72mm - Round (Mounted) (4)
15. 77mm - Round (Mounted) (2)
16. 82mm - Round (Mounted) (2)
17. C Thread (1)
18. Canon Clip (25)
19. Nikon Clip (17)

Filter Type

1. Blue (for UBVRI) (4)
2. Clear/Luminance (21)
3. Color Correcting/ Violet Reduction (2)
4. Darkframe (Black or Dark) (1)
5. Energy Rejection (8)
6. Infrared (for UBVRI) (22)
7. IR Cut (1)
8. IR Pass (1)
9. Methane (7)
10. Nitrogen II (3)
11. Red (for UBVRI) (3)
12. RGB Color Filters (includes LRGB) (3)
13. Solar Continuum (2)
14. UBVRI Filter Set (8)
15. UHC (14)
16. Ultra Violet (for UBVRI) (18)
17. Violet Reduction (5)
18. Visual (for UBVRI) (5)
19. Color (58)
20. Comet (1)
21. H-Alpha (Non-Solar) (56)
22. H-Beta (11)
23. Moon/ Neutral Density (19)
24. Nebula (13)
25. Oxygen III (76)
26. Sky Glow/ City Light Suppression (49)
27. Sulfur II (40)
28. Variable Polarizer (5)

Filter Aperture

1. 60mm (1)
2. 2" - 4" (1)
3. 4.1" - 6" (3)
4. 6.1" - 8" (2)

On or Off Axis?

1. On Axis (9)

Material

1. Film (4)
2. Glass (5)

Wratten Number

1. 8 (Yellow) (2)
2. 11 (Yellow-Green) (2)
3. 12 (Deep Yellow) (2)
4. 21 (Orange) (1)
5. 23A (Light Red) (1)
6. 29 (Deep Red) (1)
7. 47 (Blue Tricolor) (2)
8. 58 (Green Tricolor) (2)
9. 80A (Blue) (1)

Mount Electronics

1. Fully Computerized GoTo (1)

Mount/Head Design

1. None - Optical Tube Only (2)
2. Alt Azimuth (AZ) (1)

Load Capacity

1. 91+ lbs. (1)

Product Type

1. Bag / Case (52)
2. Lens (4)
3. Lighting (3)
4. Point & Shoot (9)
5. Pro Camera (12)
6. Tripod / Mount (13)

Camera Model

1. Canon 1DX (1)
2. Canon 70D (10)
3. Canon 7D Mark II (2)
4. Canon EOS M100 (3)
5. Canon T7i (4)
6. Fujifilm X-A10 (2)
7. Leica SL (13)
8. Nikon D3400 (1)
9. Nikon D7200 (2)
10. Nikon D750 (3)
11. Sony a7 (2)
12. Sony a7II (3)
13. Sony a9 (1)

Body/ Kit

1. Body (20)
2. Body + Kit (2)
3. Body + Lens (11)
4. Body + Lens + Kit (14)

Manufacturer

1. Astrodon (102)
2. Astronomik (64)
3. AstroOptic (6)
4. Baader Planetarium (117)
5. Celestron (17)
6. Chroma Technology (80)
7. Coronado (7)
8. Custom Scientific (36)
9. DayStar Filters (15)
10. DGM Optics (8)
11. Explore Scientific (10)
12. Finger Lakes Instrumentation (10)
13. HoTech (1)
14. Hoya (4)
15. IDAS Filters (60)
16. iOptron (2)
17. Kenko (1)
18. Leica (15)
19. Lumicon International (11)
20. Lunt Solar Systems (30)
21. Meade (9)
22. Optec (48)
23. Opticstar (9)
24. Optolong (5)
25. Orion (33)
26. PrimaLuceLab (2)
27. QSI (1)
28. Santa Barbara Instrument Group (SBIG) (2)
29. Shelyak Instruments (3)
30. Stellarvue (2)
31. TeleVue (3)
32. Thousand Oaks Optical (8)
33. ZWO (20)

Product Series

1. Astrodon ExoPlanet Filters (3)
2. Astrodon Narrowband Filters (31)
3. Astrodon Near-Infrared Tricolor Filters (3)
4. Astrodon Photometrics - Sloan Filters (21)
5. Astrodon Photometrics - UVBRcIc Filters (6)
6. Astrodon Tru-Balance I-Series Filters (6)
7. Astronomik CLS CCD Filters (2)
8. Astronomik CLS Filters (3)
9. Astronomik H-Alpha 12nm Nebular Filters (3)
10. Astronomik H-Alpha 6nm Nebular Filters (2)
11. Astronomik LRGB TYP II Filters (2)
12. Astronomik OIII CCD Filters (9)
13. Astronomik OIII Visual Filters (1)
14. Astronomik OWB CCD Filters (2)
15. Astronomik Planet IR Pro 742 CCD-Filters (2)
16. Astronomik ProPlanet 642 BP IR Filters (7)
17. Astronomik SII CCD Filters (1)
18. Astronomik UV/IR Blocking Filters (2)
19. Baader AstroSolar Filters (1)
20. Baader LRGB and LRGBC Filters (11)
21. Baader Polarizing Filters (Ideal for Hershel Wedge) (3)
22. Baader Solar Continuum Filters (2)
23. Coronado SolarMax 40 Ha Filter and TMax Tuner Sets (2)
24. Coronado SolarMax 60 Ha Filter and TMax Tuner Sets (3)
25. Coronado SolarMax 90 Ha Filter and TMax Tuner Sets (1)
26. Custom Scientific UBVRI Filters (11)
27. FLI Color Filter Wheels (5)
28. Lunt 1.25 inch Blocking Filter (2)
29. Lunt 2 inch Blocking Filters (5)
30. Lunt Cak Modular (1)
31. Lunt LS100FHa Filter System (6)
32. Lunt LS50FHa Filter System (6)
33. Lunt Solar 100mm Hydrogen-alpha Front Mount Filter (1)
34. Lunt Solar 50mm Hydrogen-alpha Front Mount Filter (1)
35. Meade 4000 Series Filters (2)
36. Optec 0.5 inch Diameter Round Filters for SSP Photometers (13)
37. Optec 50mm Diameter Round Filters for IFW Filter Wheels - unmounted (23)
38. Optec IFW 3 inch Filter Wheels for 3 inch IFW (3)
39. Optec IFW Filter Wheel for 2 inch IFW (2)
40. Optec Intelligent Filter Selector Systems (1)
41. Optec Intelligent Filter Selector Systems - 3 Inch (1)
42. Optec Mounted 2 inch Diameter Round filters (5)
43. Orion SkyGlow Filters (3)
44. Orion Solar Filters (3)
45. Orion UltraBlock Filters (2)
46. TeleVue Bandmate Mars Filters (1)
47. TeleVue Bandmate OIII Filters (1)
48. TO LP Visual Filters (6)
49. TO Narrowband Nebular Filters (1)
50. TO Oxygen III Filters (1)

Price

Range : $  -  $