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Apochromatic Refractors

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$1,199.00 - $1,199.00
$1,199.00

Askar 103APO f/6.8 Triplet

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1 in stock

103mm Aperture Triplet Air-Spaced APO Objective 700.4mm Focal Length f/6.8 Native Focal Ratio Includes One ED Glass Element for Superb Color Corre...

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$1,199.00 - $1,199.00
$1,199.00
$1,199.00 - $1,199.00
$1,199.00
$2,299.00 - $2,299.00
$2,299.00
$2,299.00 - $2,299.00
$2,299.00

Askar 107PHQ f/7 Quadruplet APO

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

Askar 111F Flat-Field Astrograph

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1 in stock

111mm Aperture Quadruplet APO Optics 766mm Focal Length at f/6.9 44mm Full-Frame Corrected Image Circle Integrated Field Flattener Design 5.74kg N...

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$1,499.00 - $1,499.00
$1,499.00
$1,499.00 - $1,499.00
$1,499.00
$1,699.00 - $1,699.00
$1,699.00
$1,699.00 - $1,699.00
$1,699.00

Askar 120APO f/7 Triplet

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120mm Aperture Triplet Air-Spaced APO Objective Includes one ED Glass Element for Superb Color Correction 840mm Focal Length at a Native f/7 Focal...

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$1,699.00 - $1,699.00
$1,699.00
$1,699.00 - $1,699.00
$1,699.00
$3,499.00 - $3,499.00
$3,499.00
$3,499.00 - $3,499.00
$3,499.00

Askar 130PHQ f/7 Quadruplet APO

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130mm Aperture Quadruplet APO Optics 1000mm Focal Length at f/7.7 Built-in Field Flattener 60mm Corrected Image Circle Total Assembled Weight of 1...

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$3,499.00 - $3,499.00
$3,499.00
$3,499.00 - $3,499.00
$3,499.00
Askar 131F Flat-Field APO Refractor
$1,999.00 - $1,999.00
$1,999.00
$1,999.00 - $1,999.00
$1,999.00

Askar 131F Flat-Field APO Refractor

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131mm Aperture f/7.5 Focal Ratio Quadruplet Air-Spaced APO Optical Design Includes one ED Glass Element 44mm Full-Frame Image Circle Integrated Fi...

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$1,999.00 - $1,999.00
$1,999.00
$1,999.00 - $1,999.00
$1,999.00
$2,499.00 - $2,499.00
$2,499.00
$2,499.00 - $2,499.00
$2,499.00

Askar 140APO f/7 Triplet

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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
Askar 151PHQ f/7 Quadruplet Astrograph
$4,499.00 - $4,499.00
$4,499.00
$4,499.00 - $4,499.00
$4,499.00

Askar 151PHQ f/7 Quadruplet Astrograph

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151mm Aperture Quadruplet APO Optics 1057mm Focal Length at f/7 Integrated Flattener for a 60mm Image Circle Includes Two ED Glass Elements for Co...

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$4,499.00 - $4,499.00
$4,499.00
$4,499.00 - $4,499.00
$4,499.00
$3,845.00 - $3,845.00
$3,845.00
$3,845.00 - $3,845.00
$3,845.00

Askar 160APO f/7 Triplet

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160mm Aperture Triplet Air-Spaced APO Objective 1120mm Focal Length at f/7 Includes One ED Glass Element for Color Correction Retractable Dew Shie...

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$3,845.00 - $3,845.00
$3,845.00
$3,845.00 - $3,845.00
$3,845.00
$5,279.00 - $5,279.00
$5,279.00
$5,279.00 - $5,279.00
$5,279.00

Askar 185APO f/7 Triplet

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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
Askar 203APO f/7 Triplet APO Refractor
$8,579.00 - $8,579.00
$8,579.00
$8,579.00 - $8,579.00
$8,579.00

Askar 203APO f/7 Triplet APO Refractor

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203mm Aperture Triplet Air-Spaced APO Objective 1421mm Focal Length at f/7 Includes one ED (Extra-Low Dispersion) Glass Element Retractable Tube D...

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$8,579.00 - $8,579.00
$8,579.00
$8,579.00 - $8,579.00
$8,579.00
$299.00 - $299.00
$299.00
$299.00 - $299.00
$299.00

Askar 50P f/3.8 Quadruplet APO Telescope

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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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$299.00 - $299.00
$299.00
$299.00 - $299.00
$299.00
Askar 60F Flat-Field Astrograph
$499.00 - $499.00
$499.00
$499.00 - $499.00
$499.00

Askar 60F Flat-Field Astrograph

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1 in stock

60mm Aperture Quadruplet APO Optics 408mm Focal Length f/6.8 Native Focal Ratio 44mm Full-Frame Image Circle Integrated Field Flattener 2.86kg Gro...

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$499.00 - $499.00
$499.00
$499.00 - $499.00
$499.00
Askar 65PHQ f/6.4 Quintuplet Flat-Field Astrograph
$899.00 - $899.00
$899.00
$899.00 - $899.00
$899.00

Askar 65PHQ f/6.4 Quintuplet Flat-Field Astrograph

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65mm Aperture Quintuplet APO Optical Design 416mm Focal Length at f/6.4 Built-in Field Flattener with 44mm Image Circle 2.8kg Total Weight Includi...

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$899.00 - $899.00
$899.00
$899.00 - $899.00
$899.00
$659.00 - $659.00
$659.00
$659.00 - $659.00
$659.00

Askar 71F Quadruplet Flat-Field APO f/6.9

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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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$659.00 - $659.00
$659.00
$659.00 - $659.00
$659.00
$399.00 - $399.00
$399.00
$399.00 - $399.00
$399.00

Askar 80ED f/7 Doublet

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

Askar 80PHQ f/7 Quadruplet APO

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

Askar 91F Flat-Field Astrograph

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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
$949.00 - $949.00
$949.00
$949.00 - $949.00
$949.00

Askar FRA300 Pro 60mm f/5 Quintuplet APO

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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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$949.00 - $949.00
$949.00
$949.00 - $949.00
$949.00
$1,199.00 - $1,199.00
$1,199.00
$1,199.00 - $1,199.00
$1,199.00

Askar FRA400 72mm f/5.6 Quintuplet APO

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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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$1,199.00 - $1,199.00
$1,199.00
$1,199.00 - $1,199.00
$1,199.00
$895.00 - $895.00
$895.00
$895.00 - $895.00
$895.00

Askar FRA400C 72mm f/5.6 Quintuplet APO

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

Askar FRA500 90mm f/5.6 Quintuplet APO

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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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$1,999.00 - $1,999.00
$1,999.00
$1,999.00 - $1,999.00
$1,999.00
$2,599.00 - $2,599.00
$2,599.00
$2,599.00 - $2,599.00
$2,599.00

Askar FRA600 108mm f/5.6 Quintuplet APO

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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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$2,599.00 - $2,599.00
$2,599.00
$2,599.00 - $2,599.00
$2,599.00
$3,395.00 - $3,395.00
$3,395.00
$3,395.00 - $3,395.00
$3,395.00

Askar SQA106 106mm f/4.8 Quintuplet APO

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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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$3,395.00 - $3,395.00
$3,395.00
$3,395.00 - $3,395.00
$3,395.00