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Refractor Optical Tube Assemblies

Items 1 - 25 of 30
William Optics Zenithstar 103 Imaging APO Refractor with Bahtinov Mask Cover - Red

William Optics Zenithstar 103 Imaging APO Refractor with Saddle Handle Bar - Red - A-Z103IIRD

SKU: WYO-A-Z103II-RD
  • Optical Design: Refractor
  • Telescope Aperture: 103mm (4.06")
  • Focal Ratio: f/6.9
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$1,298.00
William Optics Zenithstar 103 Imaging APO Refractor with Bahtinov Mask Cover

William Optics Zenithstar 103 Imaging APO Refractor with Saddle Handle Bar- Blue - A-Z103IIBU

SKU: WYO-A-Z103II-BU
  • Optical Design: Refractor
  • Telescope Aperture: 103mm (4.06")
  • Focal Ratio: f/6.9
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$1,298.00
William Optics Zenithstar 103 Imaging APO Refractor with Bahtinov Mask Cover - Gold

William Optics Zenithstar 103 Imaging APO Refractor with Saddle Handle Bar - Gold - A-Z103IIGD

SKU: WYO-A-Z103II-GD
  • Optical Design: Refractor
  • Telescope Aperture: 103mm (4.06")
  • Focal Ratio: f/6.9
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$1,298.00
Takahashi FC-100DF Fluorite APO Doublet Refractor Telescope OTA

Takahashi 100 mm Fluorite APO Refractor Telescope OTA - TFK10110

SKU: TAK-TFK10110
  • Optical Design: Refractor
  • Telescope Aperture: 100mm (3.94")
  • Focal Ratio: f/7.4
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$2,440.00

Takahashi TSA 120 mm APO Triplet Refractor OTA w/ 3" FeatherTouch Focuser - TTK12010-FT

SKU: TAK-TTK12010-FT
  • Optical Design: Refractor
  • Telescope Aperture: 120mm (4.72")
  • Focal Ratio: f/7.5
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$4,850.00
Explore Scientific AR102 Air Spaced Doublet Refractor OTA

Explore Scientific 102 mm Air Spaced Doublet Refractor Telescope OTA - DAR102065-01

SKU: EXS-DAR102065-01
  • Optical Design: Refractor
  • Telescope Aperture: 102mm (4.02")
  • Focal Ratio: f/6.5
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$549.99 $449.99

Explore Scientific 102mm Essential Series Apochromatic Refractor - ES-ED10207-01

SKU: EXS-ES-ED10207-01
  • Optical Design: Refractor
  • Telescope Aperture: 102mm (4.02")
  • Focal Ratio: f/7
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$1,199.99 $999.99

Sky-Watcher Esprit 100 mm ED APO Triplet Refractor - S11410

SKU: SKY-S11410
  • Optical Design: Refractor
  • Telescope Aperture: 100mm (3.94")
  • Focal Ratio: f/5.5
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$2,499.00
Takahashi FSQ-106EDX4 Quadruplet Astrograph OTA

Takahashi FSQ-106EDX4 Quadruplet Refractor Astrograph OTA - TQE10630

SKU: TAK-TQE10630
  • Optical Design: Refractor
  • Telescope Aperture: 106mm (4.17")
  • Focal Ratio: f/5
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$6,040.00
Takahashi TSA-120 APO Triplet Refractor OTA

Takahashi TSA-120 - 120 mm f/7.5 APO Triplet Refractor Telescope - TTK12010

SKU: TAK-TTK12010
  • Optical Design: Refractor
  • Telescope Aperture: 120mm (4.72")
  • Focal Ratio: f/7.5
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$4,430.00

Tele Vue NP101is Nagler-Petzval APO Refractor Telescope OTA - NPI-4057

SKU: TLV-NPI-4057
  • Optical Design: Refractor
  • Telescope Aperture: 101mm (3.98")
  • Focal Ratio: f/5.4
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$3,995.00

Sky-Watcher Evostar PRO 100 mm f/9 ED APO OTA with Aluminum Case - S11120

SKU: SKY-S11120
  • Optical Design: Refractor
  • Telescope Aperture: 100mm (3.94")
  • Focal Ratio: f/9
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$950.00

Sky Watcher Evostar PRO 120 ED APO OTA with Aluminum Carry Case - S11130

SKU: SKY-S11130
  • Optical Design: Refractor
  • Telescope Aperture: 120mm (4.72")
  • Focal Ratio: f/7.5
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$1,925.00

Explore Scientific 102 mm f/7 FCD100 Triplet Refractor w/2.5" HEX Focuser - FCD100-10207-01

SKU: EXS-FCD100-10207-01
  • Optical Design: Refractor
  • Telescope Aperture: 102mm (4.02")
  • Focal Ratio: f/7
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$1,899.99

Sky-Watcher Esprit 120 mm ED APO Triplet Refractor - S11420

SKU: SKY-S11420
  • Optical Design: Refractor
  • Telescope Aperture: 120mm (4.02")
  • Focal Ratio: f/7
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$3,199.00
Orion EON 115 mm ED Triplet APO Refractor Optical Tube

Orion EON 115mm ED Triplet Apochromatic Refractor Telescope - 10087

SKU: ORI-10087
  • Optical Design: Refractor
  • Telescope Aperture: 115mm (4.53")
  • Focal Ratio: f/7
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$1,499.99
Celestron 102mm f/9.8 Refractor OTA - Mount/Tripod Not Included

Celestron 102mm Omni XLT Refractor OTA - 21088-OTA

SKU: CEL-21088-OTA
  • Optical Design: Refractor
  • Telescope Aperture: 102mm (4.02")
  • Focal Ratio: f/10
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$299.95

Celestron 120mm Omni XLT Refractor OTA - 21090-OTA

SKU: CEL-21090-OTA
  • Optical Design: Refractor
  • Telescope Aperture: 120mm (4.72")
  • Focal Ratio: f/8.3
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$399.95
Explore FCD100 102mm f/7 APO Refractor

Explore Scientific 102 mm FCD100 f/7 Carbon Fiber Triplet Refractor w/2.5" HEX Focuser - FCD100-10207-CF

SKU: EXS-FCD100-10207-CF
  • Optical Design: Refractor
  • Telescope Aperture: 102mm (4.02")
  • Focal Ratio: f/7
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$2,199.99
iOptron 108 mm Versa ED APO Refractor Telescope OTA

iOptron Versa 108 mm ED APO Refractor OTA with Case - 6102

SKU: IOP-6102
  • Optical Design: Refractor
  • Telescope Aperture: 108mm (4.25")
  • Focal Ratio: f/6
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$1,248.00
Explore Scientific 115 mm f/5.5 FPL-53 Air-Spaced Triplet ED APO Refractor OTA

Explore Scientific 115 mm f/5.5 FPL-53 Air-Spaced Triplet ED APO Refractor w/3" Hex Focuser - FPL53-115CF-01

SKU: EXS-FPL53-115CF-01
  • Optical Design: Refractor
  • Telescope Aperture: 115mm (4.53")
  • Focal Ratio: f/5.5
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$3,499.99 $2,999.99
Meade 115 mm Series 6000 ED APO Triplet Refractor Telescope OTA

Meade 115 mm Series 6000 ED APO Triplet Refractor - 261002

SKU: MEA-261002
  • Optical Design: Refractor
  • Telescope Aperture: 115mm (4.53")
  • Focal Ratio: f/7
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$1,899.00
Stellarvue 102 mm f/7 APO Triplet Refractor Telescope with 3" Focuser

Stellarvue 102 mm f/7 APO Triplet Refractor Telescope with 3" Focuser - SVX102T

SKU: STV-SVX102T
  • Optical Design: Refractor
  • Telescope Aperture: 102mm (4.02")
  • Focal Ratio: f/7
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$2,995.00
Stellarvue 102 mm Raptor f/7 Triplet APO Telescope w/ Carbon Fiber Tube & 3" Focuser

Stellarvue 102 mm Raptor f/7 Triplet APO Telescope w/ Carbon Fiber Tube & 3" Focuser - SVX102T-R

SKU: STV-SVX102T-R
  • Optical Design: Refractor
  • Telescope Aperture: 102mm (4.02")
  • Focal Ratio: f/7
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$3,095.00
iOptron Versa 30 ED APO 108mm Refractor with iEQ30 Pro GoTo Mount

iOptron Versa 30 ED APO 108mm Refractor with iEQ30 Pro GoTo Mount - 14030

SKU: IOP-14030
  • Optical Design: Refractor
  • Telescope Aperture: 108mm (4.25")
  • Focal Ratio: f/6
  • Telescope Mount Type: Equatorial
  • Type of Electronics: Computerized GoTo
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$2,398.00