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William Optics Redcat 51 WIFD

WO-L-RC51RDIII
2 in stock

Compact Apochromatic Refractor Petzval-like Optical Design for Flat Fields William Optics Internal Focus Design (WIFD) CNC-Machined Aluminum Body ...

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CA$1,225.00 - CA$1,225.00
CA$1,225.00
CA$1,225.00 - CA$1,225.00
CA$1,225.00
CA$1,679.00 - CA$1,679.00
CA$1,679.00
CA$1,679.00 - CA$1,679.00
CA$1,679.00

Askar FRA400 72mm f/5.6 Quintuplet APO

ASK-FRA400
2 in stock

72mm Aperture Quintuplet APO Lens 400mm Focal Length at f/5.6 44mm Full-Frame Image Circle 140mm Available Back Focus 3" Rack-and-Pinion Focuser w...

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CA$1,679.00 - CA$1,679.00
CA$1,679.00
CA$1,679.00 - CA$1,679.00
CA$1,679.00
CA$1,113.00 - CA$1,113.00
CA$1,113.00
CA$1,113.00 - CA$1,113.00
CA$1,113.00

Askar SQA55 55mm f/4.8 Quintuplet APO

ASK-ASKSQA55
2 in stock

55mm Aperture Quintuplet APO Astrograph Fast f/4.8 Focal Ratio 264mm Focal Length Covers a 44mm Full-Frame Image Circle 14-Blade Aperture with f/4...

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CA$1,113.00
CA$1,113.00 - CA$1,113.00
CA$1,113.00
CA$923.00 - CA$923.00
CA$923.00
CA$923.00 - CA$923.00
CA$923.00

Askar 71F Quadruplet Flat-Field APO f/6.9

ASK-ASAPO71F
1 in stock

71mm Aperture Quadruplet APO Optical Design 490mm Focal Length at f/6.9 44mm Full-Frame Corrected Image Circle Integrated Field Flattener 3.0kg To...

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CA$923.00
CA$923.00 - CA$923.00
CA$923.00
CA$1,329.00 - CA$1,329.00
CA$1,329.00
CA$1,329.00 - CA$1,329.00
CA$1,329.00

Askar FRA300 Pro 60mm f/5 Quintuplet APO

ASK-FRA300

60mm Aperture Quintuplet APO Astrograph 300mm Focal Length at a Fast f/5 Focal Ratio 44mm Full-Frame Image Circle Integrated Petzval Corrector Des...

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CA$1,329.00 - CA$1,329.00
CA$1,329.00
CA$1,329.00 - CA$1,329.00
CA$1,329.00
CA$419.00 - CA$419.00
CA$419.00
CA$419.00 - CA$419.00
CA$419.00

Askar 50P f/3.8 Quadruplet APO Telescope

ASK-50P
5 in stock

50mm Aperture Quadruplet APO Optics Ultra-Fast f/3.8 Focal Ratio 190mm Focal Length Natively Flat Field for APS-C Sensors Standard 55mm Back Focus...

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CA$419.00 - CA$419.00
CA$419.00
CA$419.00 - CA$419.00
CA$419.00
CA$2,877.00 - CA$3,033.00
CA$2,877.00 - CA$3,033.00
CA$2,877.00 - CA$3,033.00
CA$2,877.00

William Optics Fluorostar 91

Options available

91mm Aperture Apochromatic Triplet FPL-53 Glass for Superior Color Correction Strehl Ratio Exceeding 0.95 3.3" Dual-Speed Rack & Pinion Focuse...

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CA$2,877.00 - CA$3,033.00
CA$2,877.00 - CA$3,033.00
CA$2,877.00 - CA$3,033.00
CA$2,877.00
CA$1,363.00 - CA$1,363.00
CA$1,363.00
CA$1,363.00 - CA$1,363.00
CA$1,363.00

William Optics MiniCat 51 WIFD f/3.5

WO-T-C-MINI-RD
3 in stock

51mm Aperture Diameter 178mm Focal Length f/3.5 Focal Ratio 6-Element Petzval Optical Design 43.2mm Full-Frame Image Circle WIFD Rack & Pinion...

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CA$1,363.00 - CA$1,363.00
CA$1,363.00
CA$1,363.00 - CA$1,363.00
CA$1,363.00
CA$2,013.00 - CA$2,013.00
CA$2,013.00
CA$2,013.00 - CA$2,013.00
CA$2,013.00

William Optics Redcat 71 WIFD

WO-T-C-71RDII

Apochromatic Petzval-like Optical Design WIFD (William Optics Internal Focuser Design) Integrated Bahtinov Mask in Dust Cap Included M48 Camera Ad...

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CA$2,013.00 - CA$2,013.00
CA$2,013.00
CA$2,013.00 - CA$2,013.00
CA$2,013.00
CA$2,799.00 - CA$2,799.00
CA$2,799.00
CA$2,799.00 - CA$2,799.00
CA$2,799.00

Askar FRA500 90mm f/5.6 Quintuplet APO

ASK-FRA500

90mm Aperture Quintuplet APO Optics 500mm Focal Length at f/5.6 Massive 55mm Flat-Field Image Circle Includes Two ED Glass Elements Total Assemble...

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CA$2,799.00 - CA$2,799.00
CA$2,799.00
CA$2,799.00 - CA$2,799.00
CA$2,799.00
CA$4,753.00 - CA$4,753.00
CA$4,753.00
CA$4,753.00 - CA$4,753.00
CA$4,753.00

Askar SQA106 106mm f/4.8 Quintuplet APO

ASK-SQA106
1 in stock

106mm Aperture f/4.8 Focal Ratio 509mm Focal Length Quintuplet Petzval APO Optical Design 55mm Image Circle for Medium Format Description FAQ S...

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CA$4,753.00 - CA$4,753.00
CA$4,753.00
CA$4,753.00 - CA$4,753.00
CA$4,753.00
CA$3,353.00 - CA$3,353.00
CA$3,353.00
CA$3,353.00 - CA$3,353.00
CA$3,353.00

Askar SQA85 85mm f/4.8 Quintuplet APO

ASK-SQA85
1 in stock

85mm Aperture 408mm Focal Length (f/4.8) Quintuplet Petzval APO Optical Design Supports Full-Frame (44mm) Image Circle 3.64kg OTA Weight Descri...

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CA$3,353.00 - CA$3,353.00
CA$3,353.00
CA$3,353.00 - CA$3,353.00
CA$3,353.00
CA$1,581.00 - CA$1,581.00
CA$1,581.00
CA$1,581.00 - CA$1,581.00
CA$1,581.00

William Optics RedCat 61 WIFD

WO-T-C-61RD
1 in stock

61mm Aperture Petzval-like Astrograph Fast f/4.9 Focal Ratio WIFD (William Optics Internal Focus Design) Focuser Requires No Backfocus Calculation...

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CA$1,581.00 - CA$1,581.00
CA$1,581.00
CA$1,581.00 - CA$1,581.00
CA$1,581.00
CA$1,649.00 - CA$1,649.00
CA$1,649.00
CA$1,649.00 - CA$1,649.00
CA$1,649.00

iOptron Photron 8" Ritchey-Chretien

IOP-6112
2 in stock

200mm (8") Ritchey-Chretien Optical Design 1624mm Focal Length at f/8 Coma-Free Optics for Flat-Field Astrophotography 2" 10:1 Dual-Speed Crayford...

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CA$1,649.00 - CA$1,649.00
CA$1,649.00
CA$1,649.00 - CA$1,649.00
CA$1,649.00
CA$920.00 - CA$920.00
CA$920.00
CA$920.00 - CA$920.00
CA$920.00

Sky-Watcher Quattro 150P Imaging Newtonian 6" (150mm)

SW-S11205
1 in stock

150mm (6") Primary Aperture Fast f/3.9 Focal Ratio 600mm Focal Length 2" Dual-Speed Crayford Focuser Coma Corrector/Reducer Included 12.6-pound Op...

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CA$920.00 - CA$920.00
CA$920.00
CA$920.00 - CA$920.00
CA$920.00
CA$3,639.00 - CA$3,639.00
CA$3,639.00
CA$3,639.00 - CA$3,639.00
CA$3,639.00

Askar FRA600 108mm f/5.6 Quintuplet APO

ASK-FRA600

108mm Aperture 600mm Focal Length (f/5.6) Quintuplet Flat-Field APO Optical Design 66mm Corrected Image Circle Total Weight of 6.5kg Descriptio...

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CA$3,639.00 - CA$3,639.00
CA$3,639.00
CA$3,639.00 - CA$3,639.00
CA$3,639.00
CA$2,765.00 - CA$2,765.00
CA$2,765.00
CA$2,765.00 - CA$2,765.00
CA$2,765.00

SharpStar 150mm f/2.8 HNT Hyperbolic Newtonian Astrograph

SSO-15028HNT-AL

Aperture: 150mm Focal Ratio: f/2.8 Image Circle: 44mm Gross Weight: 6 kg Back-Focus: 55mm Description FAQ Specifications In the Box Downloads W...

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CA$2,765.00 - CA$2,765.00
CA$2,765.00
CA$2,765.00 - CA$2,765.00
CA$2,765.00
CA$5,517.00 - CA$5,517.00
CA$5,517.00
CA$5,517.00 - CA$5,517.00
CA$5,517.00

William Optics UltraCat 108 f/4.8 WIFD

WO-T-C-108BR
1 in stock

108mm Aperture, 5-Element Advanced Petzval Optical Design Fast f/4.8 Focal Ratio with 518mm Focal Length Massive 60mm Flat-Field Image Circle Pate...

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CA$5,517.00 - CA$5,517.00
CA$5,517.00
CA$5,517.00 - CA$5,517.00
CA$5,517.00
CA$641.00 - CA$641.00
CA$641.00
CA$641.00 - CA$641.00
CA$641.00

iOptron 150mm f/4 Imaging Newtonian

IOP-6311

150mm (6") Newtonian Reflector 600mm Focal Length Fast f/4 Focal Ratio 10:1 Dual-Speed Crayford Focuser OTA Weight: 9 lbs. 10 oz. Description F...

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CA$641.00 - CA$641.00
CA$641.00
CA$641.00 - CA$641.00
CA$641.00
CA$781.00 - CA$781.00
CA$781.00
CA$781.00 - CA$781.00
CA$781.00

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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CA$781.00 - CA$781.00
CA$781.00
CA$781.00 - CA$781.00
CA$781.00
CA$2,099.00 - CA$2,099.00
CA$2,099.00
CA$2,099.00 - CA$2,099.00
CA$2,099.00

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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CA$2,099.00 - CA$2,099.00
CA$2,099.00
CA$2,099.00 - CA$2,099.00
CA$2,099.00
CA$3,219.00 - CA$3,219.00
CA$3,219.00
CA$3,219.00 - CA$3,219.00
CA$3,219.00

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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CA$3,219.00 - CA$3,219.00
CA$3,219.00
CA$3,219.00 - CA$3,219.00
CA$3,219.00
CA$4,965.00 - CA$4,965.00
CA$4,965.00
CA$4,965.00 - CA$4,965.00
CA$4,965.00

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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CA$4,965.00 - CA$4,965.00
CA$4,965.00
CA$4,965.00 - CA$4,965.00
CA$4,965.00
SVBONY Petzval Refractor Astrograph Lens | SVBONY SV545
CA$560.00 - CA$560.00
CA$560.00
CA$560.00 - CA$560.00
CA$560.00

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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CA$560.00 - CA$560.00
CA$560.00
CA$560.00 - CA$560.00
CA$560.00