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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.

Optical Tubes Only (OTA)

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$2,499.00 - $2,499.00
$2,499.00
$2,499.00 - $2,499.00
$2,499.00

Askar 140APO f/7 Triplet

ASK-ASKAPO140
2 in stock

140mm Aperture 980mm Focal Length f/7 Focal Ratio Air-Spaced Triplet APO with ED Glass OTA Weight: 9.2kg 125mm Retractable Rear Tube Descriptio...

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$2,499.00 - $2,499.00
$2,499.00
$2,499.00 - $2,499.00
$2,499.00
$558.00 - $558.00
$558.00
$558.00 - $558.00
$558.00

iOptron Photron 6" Ritchey-Chretien

IOP-6111
1 in stock

150mm (6") Ritchey-Chretien Optical Design 1370mm Focal Length f/9 Focal Ratio 10:1 Dual-Speed 2" Crayford Focuser 12 lbs Tube Weight Descripti...

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$558.00 - $558.00
$558.00
$558.00 - $558.00
$558.00
$1,499.00 - $1,499.00
$1,499.00
$1,499.00 - $1,499.00
$1,499.00

Askar 80PHQ f/7 Quadruplet APO

ASK-80PHQ

80mm Aperture 600mm Focal Length (f/7.5) Quadruplet APO Optics with 2 ED Elements 44mm Full-Frame Image Circle 3.9kg Optical Tube Weight Descri...

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$1,499.00 - $1,499.00
$1,499.00
$1,499.00 - $1,499.00
$1,499.00
$2,299.00 - $2,299.00
$2,299.00
$2,299.00 - $2,299.00
$2,299.00

Askar 107PHQ f/7 Quadruplet APO

ASK-107PHQ
1 in stock

107mm Quadruplet APO Optical Design 749mm Focal Length at f/7 44mm Corrected Image Circle for Full-Frame Sensors Integrated Field Flattener for Si...

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$2,299.00 - $2,299.00
$2,299.00
$2,299.00 - $2,299.00
$2,299.00
$3,598.00 - $3,598.00
$3,598.00
$3,598.00 - $3,598.00
$3,598.00

William Optics Fluorostar 120

Options available

120mm Aperture FPL-53 Triplet Apochromatic Optics 3.3" Rack & Pinion Focuser Built-in Camera Angle Rotator Integrated Bahtinov Mask Descrip...

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$3,598.00 - $3,598.00
$3,598.00
$3,598.00 - $3,598.00
$3,598.00
$499.99 - $499.99
$499.99
$499.99 - $499.99
$499.99

Explore Scientific FirstLight 127mm Mak-Cassegrain

ES-FL-MC1271900

127mm (5") Maksutov-Cassegrain Optical Tube 1900mm Focal Length f/15 Focal Ratio Includes 25mm Plössl Eyepiece & 1.25" Diagonal Smartphone Ada...

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$499.99 - $499.99
$499.99
$499.99 - $499.99
$499.99
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$3,099.00
$3,099.00 - $3,099.00
$3,099.00
$2,799.00
$2,799.00 - $2,799.00
$2,799.00

Celestron EdgeHD 9.25" OTA - CGE Dovetail

CEL-91040-XLT
1 in stock

234.95mm (9.25") EdgeHD Aplanatic Optics 2350mm Focal Length at f/10 Astrograph-quality 42mm Corrected Image Circle StarBright XLT Optical Coating...

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$3,099.00
$3,099.00 - $3,099.00
$3,099.00
$2,799.00
$2,799.00 - $2,799.00
$2,799.00
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$4,499.00
$4,499.00 - $4,499.00
$4,499.00
$3,999.00
$3,999.00 - $3,999.00
$3,999.00

Celestron EdgeHD 11" OTA - CGE Dovetail

CEL-91050-XLT
1 in stock

279.4mm (11") EdgeHD Aplanatic Optics 2800mm Focal Length (f/10) 42mm Image Circle for Full-Frame Sensors StarBright XLT Optical Coatings 28 lb Op...

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$4,499.00
$4,499.00 - $4,499.00
$4,499.00
$3,999.00
$3,999.00 - $3,999.00
$3,999.00
Save 11% Save %
$2,000.00 - $2,000.00
$2,000.00
$2,000.00 - $2,000.00
$2,000.00

Celestron C9.25 OTA - CGE Dovetail

CEL-91027-XLT

235mm (9.25") Schmidt-Cassegrain Optical Tube 2350mm Focal Length (f/10) StarBright XLT Optical Coatings Fastar-Compatible for f/2 Imaging 20 lb O...

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$2,000.00 - $2,000.00
$2,000.00
$2,000.00 - $2,000.00
$2,000.00
SVBONY MK127 127mm Maksutov-Cassegrain Telescope OTA
SVBONY MK127 127mm Maksutov-Cassegrain Telescope OTA
$409.99 - $409.99
$409.99
$409.99 - $409.99
$409.99

SVBONY MK127 127mm Maksutov-Cassegrain Telescope OTA

SV-F9382C
1 in stock

Maksutov-Cassegrain Optical Design f/11.8 Native Focal Ratio f/7.68 with Included 0.65x Reducer Internal Dual-Speed Focuser 210mm Vixen-Style Dove...

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$409.99 - $409.99
$409.99
$409.99 - $409.99
$409.99
SVBONY Petzval Refractor Astrograph Lens | SVBONY SV545
$399.99 - $399.99
$399.99
$399.99 - $399.99
$399.99

SVBONY SV545 45mm f/4.5 203mm Petzval Refractor Astrograph Lens

SV-W9317B

45mm Aperture 203mm Focal Length (f/4.5) 5-Element Petzval Optical Design Native Flat-Field Astrograph Helical Focuser with 360º Rotator M48x0.75 ...

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$399.99 - $399.99
$399.99
$399.99 - $399.99
$399.99
Askar 91F Flat-Field Astrograph
$999.00 - $999.00
$999.00
$999.00 - $999.00
$999.00

Askar 91F Flat-Field Astrograph

ASK-ASAPO91F

91mm Aperture Quadruplet APO Optics 609mm Focal Length at f/6.7 44mm Full-Frame Corrected Image Circle Integrated Field Flattener Design 3.92kg Ne...

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$999.00 - $999.00
$999.00
$999.00 - $999.00
$999.00
$1,499.00 - $1,499.00
$1,499.00
$1,499.00 - $1,499.00
$1,499.00

ZWO FF110-APO 110mm Quadruplet Refractor F/7.0

ZWO-FF110-APO
1 in stock

110mm Aperture 766mm Focal Length (f/7) 4-Element Apochromatic Optics Integrated Field Flattener 3-inch Dual-Speed Focuser 14.9 lb. Weight with Ha...

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$1,499.00 - $1,499.00
$1,499.00
$1,499.00 - $1,499.00
$1,499.00
$599.00 - $599.00
$599.00
$599.00 - $599.00
$599.00

ZWO FF70-APO 70mm Quadruplet Refractor F/7.0

ZWO-FF70-APO
2 in stock

70mm Aperture 490mm Focal Length (f/7) 4-Element Quadruplet Optical Design Integrated Field Flattener 2.4" Dual-Speed Rack & Pinion Focuser 6....

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$599.00 - $599.00
$599.00
$599.00 - $599.00
$599.00
$999.00 - $1,098.00
$999.00 - $1,098.00
$999.00 - $1,098.00
$999.00

William Optics Zenithstar 81 WIFD Telescope

Options available

Patented William Optics Internal Focus Design (WIFD) Rigid M92 Rear Thread with M63 Adapter Included Vixen/Arca-Swiss Dual-Sided Mounting Plate In...

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$999.00 - $1,098.00
$999.00 - $1,098.00
$999.00 - $1,098.00
$999.00
Tele Vue TV-85 OTA - White 1
$2,167.00 - $2,167.00
$2,167.00
$2,167.00 - $2,167.00
$2,167.00

Tele Vue TV-85 OTA - White

TV-WXO-3372

Aperture: 85mm Focal Length: 600mm Focal Ratio: f/7 Optical Design: Apochromatic (APO) Doublet Focuser: 2-inch, 10:1 Dual-Speed Rack-and-Pinion We...

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$2,167.00 - $2,167.00
$2,167.00
$2,167.00 - $2,167.00
$2,167.00
$872.16 - $872.16
$872.16
$872.16 - $872.16
$872.16

Sky-Watcher Evostar EDX 100 APO f/7 Doublet Telescope

SW-S11145

100mm Aperture Apochromatic Doublet Refractor FPL-53 Extra-Low Dispersion Glass 700mm Focal Length at f/7 Lightweight 8.4-pound Optical Tube Assem...

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$872.16 - $872.16
$872.16
$872.16 - $872.16
$872.16
$1,398.00 - $1,398.00
$1,398.00
$1,398.00 - $1,398.00
$1,398.00

William Optics UltraCat 56 f/4.8 WIFD

WO-T-C-56BR
6 in stock

56mm Aperture, 269mm Focal Length (f/4.8) 5-Element Advanced Petzval Optical Design 50mm Image Circle for Full-Frame Sensors William Optics Intern...

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$1,398.00 - $1,398.00
$1,398.00
$1,398.00 - $1,398.00
$1,398.00
$399.00 - $399.00
$399.00
$399.00 - $399.00
$399.00

Askar 80ED f/7 Doublet

ASK-ASF80ED
1 in stock

560mm Focal Length f/7 Focal Ratio Triplet Objective with ED Glass APS-C Corrected Image Circle 55mm Back Focus 0.42kg Weight Description FAQ S...

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$399.00 - $399.00
$399.00
$399.00 - $399.00
$399.00
$895.00 - $895.00
$895.00
$895.00 - $895.00
$895.00

Askar FRA400C 72mm f/5.6 Quintuplet APO

ASK-FRA400C

72mm Aperture Quintuplet APO Optics 400mm Focal Length at f/5.6 Covers a 44mm Full-Frame Image Circle Integrated 17-Blade Aperture (f/5.6-f/22) 2....

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$895.00 - $895.00
$895.00
$895.00 - $895.00
$895.00
$1,595.00 - $1,595.00
$1,595.00
$1,595.00 - $1,595.00
$1,595.00

Askar SQA70 70mm f/4.8 Quintuplet APO

ASK-SQA70
1 in stock

70mm Aperture 336mm Focal Length f/4.8 Focal Ratio Quintuplet (5-Element) APO Petzval Optical Design 44mm Full-Frame Image Circle Contains Two ED ...

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$1,595.00 - $1,595.00
$1,595.00
$1,595.00 - $1,595.00
$1,595.00
$2,598.00 - $2,998.00
$2,598.00 - $2,998.00
$2,598.00 - $2,998.00
$2,598.00

William Optics Cat 91 WIFD

Options available
1 variants in stock

91mm Aperture, 448mm Focal Length (f/4.9) 5-Element Advanced Petzval Optical Design 55mm Corrected Image Circle WIFD Rack & Pinion Internal Fo...

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$2,598.00 - $2,998.00
$2,598.00 - $2,998.00
$2,598.00 - $2,998.00
$2,598.00
$2,198.00 - $2,198.00
$2,198.00
$2,198.00 - $2,198.00
$2,198.00

William Optics Pleiades 68 Astrograph F/3.8 7-Element WIFD

WO-T-P-68BU

68mm Aperture 7-Element Astrograph Fast f/3.8 Focal Ratio 260mm Focal Length 48mm Full-Frame Image Circle Weighs only 2.98 kg (6.57 lbs) WIFD Focu...

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$2,198.00 - $2,198.00
$2,198.00
$2,198.00 - $2,198.00
$2,198.00
$5,279.00 - $5,279.00
$5,279.00
$5,279.00 - $5,279.00
$5,279.00

Askar 185APO f/7 Triplet

ASK-185APO
1 in stock

185mm Aperture Triplet APO Objective 1295mm Focal Length at f/7 Includes one ED Glass Element for Color Correction 95mm Retractable Rear Tube for ...

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$5,279.00 - $5,279.00
$5,279.00
$5,279.00 - $5,279.00
$5,279.00