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Manufacturer

1. ADM Accessories (3)
2. Andor/Apogee (1)
3. Astro Hutech (7)
4. Astro-Physics (4)
5. Astrodon (104)
6. Astronomik (36)
7. AstroOptic (1)
8. Atik Cameras (20)
9. Baader Planetarium (119)
10. Celestron (31)
11. Chroma Technology (80)
12. CNC Parts Supply (1)
13. Custom Scientific (11)
14. DayStar Filters (7)
15. DGM Optics (6)
16. Explore Scientific (6)
17. Finger Lakes Instrumentation (77)
18. HoTech (2)
19. IDAS Filters (24)
20. Imaging Source Astronomy Cameras (6)
21. Innovations Foresight (8)
22. iOptron (5)
23. Losmandy (2)
24. Lumicon International (3)
25. Meade (13)
26. Moonglow Technologies (2)
27. Olivon (2)
28. Optec (78)
29. Opticstar (10)
30. Optolong (2)
31. Orion (32)
32. PlaneWave Instruments (14)
33. PrimaLuceLab (4)
34. QHYCCD (29)
35. QSI (38)
36. Revolution Imager (4)
37. Santa Barbara Instrument Group (SBIG) (33)
38. Shelyak Instruments (22)
39. Sky-Watcher USA (6)
40. Snapzoom (1)
41. Starizona (5)
42. Starlight Xpress, LTD (61)
43. Stellarvue (3)
44. Swarovski (2)
45. Takahashi (59)
46. TeleVue (23)
47. Thousand Oaks Optical (2)
48. Vixen (10)
49. William Optics (6)
50. ZWO (30)

Sensor Size or Dimensions

1. 1" (1)
2. 1/2.3" (6)
3. 2/3" (12)
4. APS-C (2)
5. Full Frame (3)

Video Resolution

1. 1080 HD (24)
2. 4K (10)
3. Standard Definition (5)

Color or Mono Sensor?

1. Color (7)
2. Monochrome (4)

Body/ Kit

1. Body (19)
2. Body + Kit (1)
3. Body + Lens (15)
4. Body + Lens + Kit (15)

Eyepiece Focal Length

1. 0mm - 5mm (6)
2. 10.1mm - 20mm (25)
3. 20.1mm - 30mm (25)
4. 30.1mm - 40mm (7)
5. 40.1mm - 50mm (1)
6. 5.1mm - 10mm (7)
7. 50.1mm - 60mm (1)
8. Zoom Eyepiece (4)

For Filters Of What Size?

1. 1.25" Mounted (47)
2. 2" (50.8mm) Round Mounted (2)
3. 2" (50.8mm) Round Unmounted (24)
4. 2" (50.8mm) Square Unmounted (12)
5. 25mm Unmounted (4)
6. 28mm Unmounted (9)
7. 31mm Unmounted (1)
8. 36mm Unmounted (25)
9. 65mm Squared Unmounted (9)

Filter Slots Available

1. 10 (19)
2. 11 (4)
3. 12 (1)
4. 20 (9)
5. 5 (79)
6. 6 (4)
7. 7 (21)
8. 8 (12)
9. 9 (10)

Non-Solar Filter Size & Mounting

1. 1.25" - Mounted (57)
2. 2" - Mounted (30)
3. 27mm - Unmounted (1)
4. 28mm - Unmounted (1)
5. 31mm - Mounted (1)
6. 31mm - Unmounted (26)
7. 36mm - Mounted (4)
8. 36mm - Unmounted (27)
9. 50mm - Round (Mounted) (5)
10. 50mm - Round (Unmounted) (50)
11. 50mm - Square (Unmounted) (40)
12. 65mm - Square (Unmounted) (19)
13. C Thread (1)
14. Canon Clip (11)
15. Nikon Clip (10)

Filter Type

1. Blue (for UBVRI) (2)
2. Clear/Luminance (13)
3. Darkframe (Black or Dark) (1)
4. Infrared (for UBVRI) (3)
5. IR Cut (1)
6. Methane (7)
7. Nitrogen II (3)
8. Red (for UBVRI) (2)
9. RGB Color Filters (includes LRGB) (4)
10. Solar Continuum (2)
11. UBVRI Filter Set (1)
12. UHC (2)
13. Ultra Violet (for UBVRI) (12)
14. Violet Reduction (1)
15. Visual (for UBVRI) (3)
16. Color (31)
17. H-Alpha (Non-Solar) (44)
18. H-Beta (5)
19. Moon/ Neutral Density (4)
20. Nebula (3)
21. Oxygen III (52)
22. Sky Glow/ City Light Suppression (6)
23. Sulfur II (31)

Filter Aperture

1. 2" - 4" (3)
2. 4.1" - 6" (2)
3. 6.1" - 8" (3)
4. 10.1" - 12" (1)

Focuser Design

1. Crayford (10)
2. FeatherTouch (10)
3. Rack and Pinion (5)
4. Secondary Mirror Focuser (2)
5. Stellarvue (2)

Focuser Speed Ratio

1. 1:10 (14)

Focusing Mask Size

1. 6.1" - 9" (9)
2. 9.1" - 12" (1)

What Type of Focus Accessory?

1. Digital Focuser (1)
2. Focus Mask (11)
3. Focus Motor (3)
4. Focuser (37)

Load Capacity

1. 0-15 lbs. (1)
2. 16-30 lbs. (3)
3. 31-45 lbs. (4)
4. 60-75 lbs. (1)
5. 76-90 lbs. (4)
6. 91+ lbs. (12)

Design

1. Coma Corrector (12)
2. Extender (35)
3. Extender/ Flattener (1)
4. Field Flattener (6)
5. Flattener/ Reducer (5)
6. Reducer (13)
7. Reducer/ Corrector (13)
8. Telecompressor (14)

Ring Inner Diameter

1. 51mm - 100mm (1)

Telescope Aperture

1. 3" and Under (1)

Telescope Focal Length

1. 101mm - 400mm (1)

Telescope Focal Ratio

1. f/4.1 - f/6 (1)

Adapter Length

1. 0mm - 10mm (14)
2. 10.1mm - 20mm (6)
3. 20.1mm - 30mm (8)
4. 40.1mm - 50mm (4)
5. 60.1mm - 70mm (2)

Adapter Side A

1. 1.25" Drawtube (2)
2. 2" Drawtube (1)
3. 2" Female Thread (2)
4. 2" Male Thread (2)
5. C Mount (2)
6. EOS Mount (9)
7. Nikon F Mount (7)
8. SCT Standard (4)
9. T-Thread Female (9)
10. T-Thread Male (14)

1. 1.25" Drawtube (2)
2. 2" Drawtube (3)
3. 2" Male Thread (1)
4. C Mount (2)
5. EOS Mount (2)
6. Nikon F Mount (2)
7. Pentax K Mount (1)
8. T-Thread Female (15)
9. T-Thread Male (6)

Cable Type

1. DB9 Serial (1)

Flash Type

1. Built In Fixed (4)
2. Built In Pop Up (19)
3. Hot Shoe (8)

Still Image Resolution

1. 12MP (18)
2. 20MP (11)
3. 24MP (10)
4. 30.4MP (1)

Built In Wifi

1. No (25)
2. Yes (15)

Barrel Or Connection Size

1. 1.25" Barrel (29)
2. 1.25"/ 2" Variable (2)
3. 2" Barrel (15)
4. 2" Threaded (5)
5. 3" Barrel (2)

Eyepiece Design

1. Delos (2)
2. Ethos (4)
3. Panoptic (1)
4. Plossl (5)
5. Wide Angle (21)

Eyepiece Eye Relief

1. Long: 16mm or More (42)
2. Moderate: 11mm - 15mm (18)
3. Short: Less than 10mm (3)
4. Variable (2)

Filter Wheel Control

1. Digital (1)
2. Manual (13)
3. Motorized (18)

Style of Filter Holder

1. Slider (1)
2. Wheel (46)

Material

1. Film (9)

Focuser Size

1. 1.25" (1)
2. 2" (9)
3. 2.5" (5)
4. 3" (2)

Mount Electronics

1. Manual - No Electronics (1)
2. Single Drive Motorized (1)
3. Fully Computerized GoTo (11)

Mount/Head Design

1. None - Optical Tube Only (4)
2. Tripod (13)
3. Alt Azimuth (AZ) (4)
4. Equatorial (EQ) (7)
5. Star Tracker (1)

Tripod Material

1. carbon fiber (2)

Camera Color

1. Black (40)
2. Silver (8)

Image Stabilization

1. No (1)
2. Yes (36)

CCD Sensor

1. E2V - CCD47-10 (1)
2. Sony - ICX274 (1)
3. Sony - ICX445 (2)

Eyepiece Special Feature

1. Argon Purged (2)
2. Fog Proof (15)
3. Nitrogen Purged (15)
4. Waterproof (17)

On or Off Axis?

1. On Axis (9)

Includes GPS?

1. No (1)

Mount Motor Type

1. Single Servo Motor (1)

Tripod Max Height

1. 60" - 64.9" (2)

Tripod Folded Length

1. 20" - 24.9" (2)

GPS Included?

1. No (10)
2. Yes (17)

Product Series

1. ADM Miscellaneous (1)
2. Astrodon ExoPlanet Filters (2)
3. Astrodon HA_OIII_SII (1)
4. Astrodon Narrowband Filters (31)
5. Astrodon Near-Infrared Tricolor Filters (3)
6. Astrodon Photometrics - Sloan Filters (10)
7. Astrodon Photometrics - UVBRcIc Filters (6)
8. Astrodon Tru-Balance I-Series Filters (5)
9. Astronomik CLS Filters (1)
10. Astronomik H-Alpha 6nm Nebular Filters (3)
11. Astronomik IR Filters (1)
12. Astronomik LRGB TYP II Filters (2)
13. Astronomik OIII CCD Filters (9)
14. Astronomik OIII Visual Filters (1)
15. Astronomik OWB CCD Filters (2)
16. Astronomik SII CCD Filters (3)
17. Astronomik UHC Visual Filters (1)
18. Astronomik UV/IR Blocking Filters (1)
19. ATIK GP (Guider/Planetary) (2)
20. Baader AstroSolar Filters (9)
21. Baader LRGB and LRGBC Filters (8)
22. Custom Scientific UBVRI Filters (8)
23. FLI Camera Options (1)
24. FLI Color Filter Wheels (13)
25. FLI MicroLine Cameras (2)
26. Imaging Source USB CCD Cameras (1)
27. Innovation Foresight On Axis Guider (4)
28. iOptron SkyTracker Mounts (2)
29. Optec 0.5 inch Diameter Round Filters for SSP Photometers (12)
30. Optec 50mm Diameter Round Filters for IFW Filter Wheels - unmounted (16)
31. Optec Adapters for OPTEC-2400 Mount (10)
32. Optec IFW 3 inch Filter Wheels for 3 inch IFW (3)
33. Optec IFW Filter Wheel for 2 inch IFW (2)
34. Optec Intelligent Filter Selector Systems (1)
35. Optec Intelligent Filter Selector Systems - 3 Inch (1)
36. Optec Mounted 2 inch Diameter Round filters (1)
37. Optec NextGEN Series of Telescope Telecompressors (4)
38. Optec OPTEC-2300 Camera Adapters (8)
39. Optec OPTEC-2380 Threaded Mounting Rings (7)
40. Optec OPTEC-3000 3-inch Adapters (1)
41. Opticstar AG Cameras (2)
42. Opticstar PL and SL Cameras (1)
43. Orion Guiders&Cameras (1)
44. QHYCCD Filter Wheels (5)
45. QSI 600 (1)
46. SBIG Filter Wheels (2)
47. TO LP Visual Filters (2)
48. Vixen Polarie Mounts (1)
49. Vixen Vixen T-Rings (1)

Price

Range : $  -  $