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Askar APO Triplet Refractors

The Askar APO triplet refractors are three-element apochromatic refractors with focal ratios around f/7, built for high-resolution imaging and sharp visual views. The range covers the 103APO f/6.8, the 120APO, 140APO and 160APO, and the large 185APO and 203APO f/7.

Each tube has matched accessories in this collection: a 1x field flattener for a flat field at native focal length, and 0.8x reducers (plus a 0.6x for the 103APO) for a faster, wider setup. The 185APO adds a full-frame flattener and reducer.

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$329.00 - $329.00
$329.00
$329.00 - $329.00
$329.00

Askar 0.6x Reducer for 103APO

ASK-ASKRE10306
3 in stock

Transforms Askar 103APO to an f/4.08, 420.24mm focal length system Quadruplet optical design provides field flattening for full-frame sensors Stan...

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$329.00 - $329.00
$329.00
$329.00 - $329.00
$329.00
$219.00 - $219.00
$219.00
$219.00 - $219.00
$219.00

Askar 0.8x Reducer for 103APO

ASK-ASKRE10308

Reduces telescope focal ratio to a faster f/5.44 Shortens 103APO focal length to 560.32mm for wider fields Triplet optical design provides field f...

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$219.00 - $219.00
$219.00
$219.00 - $219.00
$219.00
$216.41 - $216.41
$216.41
$216.41 - $216.41
$216.41

Askar 0.8x Reducer for 120APO

ASK-ASKRE12008

Reduces Askar 120APO to a fast f/5.6 focal ratio Shortens focal length to 672mm for wider fields of view Triplet optical design provides field fla...

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$216.41 - $216.41
$216.41
$216.41 - $216.41
$216.41
$329.00 - $329.00
$329.00
$329.00 - $329.00
$329.00

Askar 0.8x Reducer for 140APO

ASK-ASKAR140R
1 in stock

Reduces 140APO Focal Ratio to f/5.6 Shortens 140APO Focal Length to 784mm Standard 55mm Back Focus Requirement Triplet Optical Design with Field F...

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$329.00 - $329.00
$329.00
$329.00 - $329.00
$329.00
$1,199.00 - $1,199.00
$1,199.00
$1,199.00 - $1,199.00
$1,199.00

Askar 103APO f/6.8 Triplet

ASK-ASKAPO103
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
$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
$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
$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
Askar 185APO 0.8x Full-frame Reducer
$329.00 - $329.00
$329.00
$329.00 - $329.00
$329.00

Askar 185APO 0.8x Full-frame Reducer

ASK-ASKRE18508
1 in stock

Reduces Askar 185APO to f/5.6 Resulting Focal Length: 1036mm 4-Element Quadruplet Optical Design Standard 55mm Back Focus Illuminates Full-Frame S...

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$329.00 - $329.00
$329.00
$329.00 - $329.00
$329.00
Askar 185APO 1x Full-frame Flattener
$329.00 - $329.00
$329.00
$329.00 - $329.00
$329.00

Askar 185APO 1x Full-frame Flattener

ASK-ASKFL18510
1 in stock

Maintains Native f/7 Focal Ratio Maintains Native 1295mm Focal Length Triplet Optical Design Standard 55mm Back Focus Includes M68, M54 & M48 ...

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$329.00 - $329.00
$329.00
$329.00 - $329.00
$329.00
$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
$219.00 - $219.00
$219.00
$219.00 - $219.00
$219.00

Askar 1x Field Flattener for 103APO

ASK-ASKFL10310
1 in stock

Corrects field curvature and coma for the Askar 103APO Maintains the native 700.4mm focal length and f/6.8 ratio Triplet optical design delivers s...

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$219.00 - $219.00
$219.00
$219.00 - $219.00
$219.00
$216.41 - $216.41
$216.41
$216.41 - $216.41
$216.41

Askar 1x Field Flattener for 120APO

ASK-ASKFL12010

Designed specifically for the Askar 120APO Telescope 1x Magnification Factor Triplet Optical Design Maintains Native f/7 Focal Ratio Standard 55mm...

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$216.41 - $216.41
$216.41
$216.41 - $216.41
$216.41
$329.00 - $329.00
$329.00
$329.00 - $329.00
$329.00

Askar 1x Field Flattener for 140APO

ASK-ASKAR140FL
1 in stock

Engineered for the Askar 140APO Triplet Refractor 1x Flattener Preserves Native f/7 Focal Ratio Corrects a 44mm Full-Frame Image Circle Standard 5...

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$329.00 - $329.00
$329.00
$329.00 - $329.00
$329.00
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

ASK-203APO

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