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Category

1. Telescopes (53)
2. Mounts (10)
3. Eyepieces (36)
4. Accessories (99)
5. Imaging (9)
6. Binos & Spotting Scopes (1)
7. Used & Demo (6)

Telescope Focal Ratio

1. f/2.1 - f/4 (3)
2. f/4.1 - f/6 (17)
3. f/6.1 - f/8 (25)
4. f/8.1 - f/10 (4)
5. f/10.1 - f/12 (1)
6. f/12.1 - f/14 (3)
7. f/14.1 - f/15 (3)

Telescope Focal Length

1. 401mm - 800mm (21)
2. 801mm - 1200mm (20)
3. 1201mm - 1600mm (5)
4. 1601mm - 2000mm (5)

Barrel Or Connection Size

1. 1.25" Barrel (18)
2. 2" Barrel (19)
3. 3" Barrel (1)

Eyepiece Focal Length

1. 0mm - 5mm (1)
2. 10.1mm - 20mm (12)
3. 20.1mm - 30mm (8)
4. 30.1mm - 40mm (5)
5. 5.1mm - 10mm (9)

Eyepiece Design

1. Wide Angle (10)

Eyepiece Special Feature

1. Argon Purged (24)
2. Fog Proof (10)
3. Nitrogen Purged (1)
4. Waterproof (23)

Eyepiece Eye Relief

1. Long: 16mm or More (11)
2. Moderate: 11mm - 15mm (14)
3. Short: Less than 10mm (2)

Eyepiece Field of View

1. 100-120° FOV (9)
2. 80-99° FOV (10)
3. 60-79° FOV (14)

Telescope Aperture

1. 3" and Under (1)
2. 3.1" - 4" (19)
3. 4.1" - 5" (20)
4. 5.1" - 6" (9)
5. 7.1" - 8" (1)
6. 8.1" - 10" (4)
7. 10.1" - 12" (1)
8. 14.1" - 16" (1)

Product Type

1. Bag / Case (1)

Load Capacity

1. 60-75 lbs. (1)

Mount Electronics

1. Manual - No Electronics (2)
2. Fully Computerized GoTo (1)

Mount Design

1. Alt Azimuth (AZ) (2)
2. Equatorial (EQ) (2)

Filter Type

1. UHC (2)
2. H-Beta (2)
3. Moon/ Neutral Density (2)
4. Oxygen III (2)
5. Sky Glow/ City Light Suppression (2)

Non-Solar Filter Size & Mounting

1. 1.25" - Mounted (5)
2. 2" - Mounted (5)

What Type of Focus Accessory?

1. Focuser (1)

Focuser Size

1. 2" (1)

Focuser Design

1. Crayford (1)

Design

1. Coma Corrector (1)
2. Extender (4)
3. Flattener/ Reducer (1)

Counterweight Weight

1. 5.1 - 8 Ibs (1)
2. 8.1 - 12 Ibs (1)

Ring Inner Diameter

1. 101mm - 150mm (3)
2. 151mm - 200mm (3)

Product Series

1. ES 100 Degree Series Eyepieces (9)
2. ES 120 Degree Series Eyepieces (1)
3. ES 62 Degree Eyepiece (7)
4. Es 68 Series Waterproof Eyepiece (7)
5. ES 82 Degree Eyepiece (8)
6. ES 92 Degree Series Eyepieces (2)
7. ES Double Air-Spaced Achromatic Refractors (7)
8. ES Maksutov Carbon Fiber Telescopes (1)
9. ES Triple Air-Spaced Apochromatic Refractors (16)
10. Explore Scientific FirstLight Telescopes (16)

Price

1. $0.00 - $299.99 (87)
2. $300.00 - $599.99 (36)
3. $600.00 - $899.99 (17)
4. $900.00 - $1,199.99 (10)
5. $1,200.00 - $1,499.99 (6)
6. $1,500.00 - $1,799.99 (3)
7. $1,800.00 - $2,099.99 (5)
8. $2,100.00 - $2,399.99 (1)
9. $2,400.00 - $2,699.99 (2)
10. $2,700.00 - $2,999.99 (2)
11. $3,300.00 - $3,599.99 (2)
12. $3,900.00 and above (2)