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1. Telescopes (79)
2. Mounts (23)
3. Eyepieces (8)
4. Accessories (220)
5. Imaging (28)
6. Solar (19)
7. Outdoor Gear (1)
8. Binos & Spotting Scopes (37)
9. Specials (1)

Telescope Focal Ratio

1. f/2.1 - f/4 (7)
2. f/4.1 - f/6 (35)
3. f/6.1 - f/8 (12)
4. f/8.1 - f/10 (5)
5. f/10.1 - f/12 (5)
6. f/12.1 - f/14 (6)
7. f/14.1 - f/15 (4)

Telescope Focal Length

1. 101mm - 400mm (7)
2. 401mm - 800mm (24)
3. 801mm - 1200mm (23)
4. 1201mm - 1600mm (9)
5. 1601mm - 2000mm (5)
6. 2001mm - 3000mm (4)

Barrel Or Connection Size

1. 1.25" Barrel (3)

Eyepiece Focal Length

1. 10.1mm - 20mm (2)
2. 5.1mm - 10mm (1)

Eyepiece Eye Relief

1. Long: 16mm or More (1)
2. Moderate: 11mm - 15mm (1)

Eyepiece Field of View

1. 80-99° FOV (1)
2. 60-79° FOV (1)
3. 40-59° FOV (1)

Telescope Aperture

1. 3" and Under (8)
2. 3.1" - 4" (20)
3. 4.1" - 5" (8)
4. 5.1" - 6" (8)
5. 6.1" - 7" (4)
6. 7.1" - 8" (11)
7. 8.1" - 10" (7)
8. 10.1" - 12" (4)
9. 12.1" - 14" (3)
10. 14.1" - 16" (1)

Aperture

1. 30mm or Less (1)
2. 31mm to 40mm (3)
3. 41mm to 50mm (11)
4. 61mm to 70mm (8)
5. 71mm to 80mm (2)
6. 91mm or More (1)

Magnification

1. 7x (2)
2. 8x - 9x (6)
3. 10x - 10.5x (7)
4. 13x - 15x (5)
5. 20x or More (3)
6. Zoom (1)

Features

1. Water Proof/ Resistant (9)
2. Zoom (1)

Best Used For

1. Astronomy (11)
2. Birding & Wildlife (1)

Prism Type

1. Porro (16)
2. Roof (5)

Product Type

1. Bag / Case (24)
2. Tripod / Mount (3)

Load Capacity

1. 0-15 lbs. (1)
2. 16-30 lbs. (1)

Mount Electronics

1. Fully Computerized GoTo (1)

Mount Design

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

Material

1. Film (24)
2. Glass (8)

On or Off Axis?

1. Off Axis (1)
2. On Axis (31)

Aperture

1. 2" - 4" (4)
2. 4.1" - 6" (8)
3. 6.1" - 8" (6)
4. 8.1" - 10" (3)
5. 10.1" - 12" (4)
6. 12" & Larger (5)

Filter Type

1. Clear/Luminance (1)
2. Color (1)
3. H-Alpha (Non-Solar) (1)
4. H-Beta (2)
5. Moon/ Neutral Density (3)
6. Oxygen III (3)
7. Sky Glow/ City Light Suppression (6)
8. Sulfur II (1)
9. Variable Polarizer (2)

Non-Solar Filter Size & Mounting

1. 1.25" - Mounted (15)
2. 2" - Mounted (8)
3. 2" - Unmounted (1)

What Type of Focus Accessory?

1. Focuser (2)

Focuser Size

1. 2" (1)

Focuser Design

1. Crayford (1)

Filter Slots Available

1. 5 (4)
2. 8 (1)

For Filters Of What Size?

1. 1.25" Mounted (4)

Design

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

Counterweight Weight

1. 2.1 - 5 Ibs (1)
2. 5.1 - 8 Ibs (1)
3. 8.1 - 12 Ibs (2)
4. 15.1 Ibs and higher (1)

Ring Inner Diameter

1. 51mm - 100mm (3)
2. 101mm - 150mm (3)
3. 151mm - 200mm (2)
4. 201mm - 250mm (1)
5. 251mm - 300mm (1)

Product Series

1. Orion Atlas EQ-G Equatorial Mounts (2)
2. Orion Guiders&Cameras (9)
3. Orion MegaView Ulta-Wide Eyepieces (1)
4. Orion Padded Scope Cases (14)
5. Orion Paragon-Plus Binocular Mount (2)
6. Orion SkyGlow Filters (3)
7. Orion SkyQuest Classic Dobsonian (5)
8. Orion SkyQuest IntelliScope (2)
9. Orion Solar Filters (21)
10. Orion Tube Rings (7)
11. Orion UltraBlock Filters (2)
12. Orion XTg GoTo Dobsonian Telescopes (3)

Price

1. $0.00 - $299.99 (312)
2. $300.00 - $599.99 (42)
3. $600.00 - $899.99 (7)
4. $900.00 - $1,199.99 (5)
5. $1,200.00 - $1,499.99 (6)
6. $1,500.00 - $1,799.99 (8)
7. $1,800.00 - $2,099.99 (6)
8. $2,100.00 - $2,399.99 (5)
9. $2,700.00 - $2,999.99 (3)
10. $3,300.00 - $3,599.99 (1)
11. $3,600.00 - $3,899.99 (2)
12. $4,200.00 and above (1)