Apochromats are refractors whose lenses are laid out in such a way as to combine at least three colours at a common focal point. This suppresses the chromatic aberration that is typical of refractor telescopes. Without this correction, bright objects like the Moon or the planets would have disruptive colour fringes.
Omegon
Apochromatic refractor Pro APO 85/560 ED Triplet CEM26 LiteRoc
Our price:
RRP:
$ 3,908.00
$ 3,890.00
Omegon
Apochromatic refractor Pro APO AP 66/400 ED SkyGuider Pro
Our price:
RRP:
$ 1,735.00
$ 1,650.00
Omegon
Telescope Pro APO 72/400 Quintuplet CEM26 LiteRoc
Our price:
RRP:
$ 3,348.00
$ 3,290.00
Omegon
Apochromatic refractor Pro APO 94/517 Triplet ED CEM26 LiteRoc
Our price:
RRP:
$ 3,548.00
$ 3,490.00
Meade
Apochromatic refractor AP 115/805 Series 6000 LX85 GoTo
Our price:
RRP:
$ 5,300.00
$ 4,320.00
Omegon
Apochromatic refractor Pro APO AP 85/510 Triplet ED FCD-100
Our price:
RRP:
$ 1,199.00
$ 949.00
Omegon
Apochromatic refractor Pro APO AP 76/342 Triplet ED OTA
Our price:
RRP:
$ 1,398.00
$ 1,290.00
Omegon
Apochromatic refractor Pro APO AP 96/575 Triplet ED FCD-100
$ 1,490.00
Omegon
Apochromatic refractor Pro APO AP 61/360 Triplet ED OTA
$ 779.00
Omegon
Apochromatic refractor Pro APO AP 140/910 Triplet ED FCD-100
$ 4,490.00
Omegon
Apochromatic refractor Pro APO AP 106/700 Triplet ED FCD-100
Our price:
RRP:
$ 1,999.00
$ 1,899.00
Omegon
Apochromatic refractor Pro APO AP 104/650 ED OTA + 2'' Field Flattener
Our price:
RRP:
$ 3,449.00
$ 3,390.00
William Optics
Apochromatic refractor AP 81/478 Gran Turismo 81 IV OTA Guidescope-Set
Our price:
RRP:
$ 2,380.00
$ 1,920.00
Omegon
Apochromatic refractor Pro APO AP 140/672 Triplet OTA
Our price:
RRP:
$ 5,939.00
$ 4,949.00
TS Optics
Apochromatic refractor AP 90/540 OTA
$ 1,680.00
William Optics
Apochromatic refractor AP 71/420 Gran Turismo GT 71 OTA
$ 1,300.00
Askar
Apochromatic refractor AP 40/180 FMA180 OTA
$ 461.00
Askar
Apochromatic refractor AP 40/180 FMA180PRO OTA
$ 570.00
Skywatcher
Apochromatic refractor AP 62/400 Evolux-62ED OTA
$ 483.00
Omegon
Apochromatic refractor Pro APO AP 80/500 ED Carbon OTA + Field Flattener
Our price:
RRP:
$ 1,449.00
$ 1,390.00
Skywatcher
Apochromatic refractor AP 62/400 Evolux-62ED Star Adventurer GTi Wi-Fi GoTo SET
Our price:
RRP:
$ 1,620.00
$ 1,520.00
Askar
Apochromatic refractor AP 107/740 107PHQ OTA
$ 3,200.00
Omegon
Apochromatic refractor Pro APO AP 108/600 Quintuplet OTA
Our price:
RRP:
$ 3,090.00
$ 2,845.00
William Optics
Apochromatic refractor AP 61/300 RedCat 61 OTA
$ 1,960.00
William Optics
Apochromatic refractor AP 81/478 GranTurismo 81WIFD OTA
$ 2,170.00
Levenhuk
Apochromatic refractor AP 72/432 Ra OTA
$ 550.00
Askar
Apochromatic refractor AP 80/600 80PHQ
Our price:
RRP:
$ 2,390.00
$ 2,170.00
Levenhuk
Apochromatic refractor AP 80/500 Ra R80 ED OTA
$ 820.00
Skywatcher
Apochromatic refractor AP 82/530 Evolux-82ED OTA
$ 810.00
Tecnosky
Apochromatic refractor AP 70/420 OWL Triplet OTA
$ 870.00
Omegon
Apochromatic refractor Pro APO AP 40/180 OTA
Our price:
RRP:
$ 569.00
$ 429.90
Askar
Apochromatic refractor AP 60/360 80/500 V OTA
$ 2,170.00
TS Optics
Apochromatic refractor AP 110/660 ED OTA
Our price:
RRP:
$ 2,500.00
$ 1,510.00
Tecnosky
Apochromatic refractor AP 72/432 ED FPL53
$ 600.00
Tecnosky
Apochromatic refractor SLD 130/900 V2 OTA
$ 2,710.00
OPT
Apochromatic refractor Radian AP 75/405 Petzval OTA
$ 2,490.00
Skywatcher
Apochromatic refractor AP 62/400 Evolux-62ED Star Adventurer GTi Wi-Fi GoTo SET
Our price:
RRP:
$ 1,520.00
$ 1,410.00
Tecnosky
Apochromatic refractor AP 70/478 quadruplet flat-field OTA
$ 820.00
Vixen
Apochromatic refractor AP 90/495 VSD90SS OTA
$ 7,000.00
ZWO
Apochromatic refractor FF80 AP 80/600 Quadruplet OTA
$ 2,270.00
Tecnosky
Apochromatic refractor AP 110/528 SLD Triplet FCD-100 OWL OTA
$ 4,120.00
Askar
Apochromatic refractor AP 151/1057 151PHQ OTA
$ 5,800.00
William Optics
Apochromatic refractor AP Fluorostar 120/780 Red OTA
$ 5,200.00
TS Optics
Apochromatic refractor AP 106/700 FDC100 OTA
$ 2,390.00
William Optics
Apochromatic refractor AP 156/1217 Fluorostar Red OTA
$ 10,200.00
William Optics
Apochromatic refractor AP Fluorostar 120/780 Gold OTA
$ 5,200.00
William Optics
Apochromatic refractor AP Fluorostar 120/780 Space Gray OTA
$ 5,200.00
William Optics
Apochromatic refractor AP 132/925 FluoroStar Red OTA
$ 6,200.00
TS Optics
Apochromatic refractor AP 80/480 CF-APO f/6 FPL55 Triplet OTA
$ 1,300.00
Askar
Apochromatic refractor AP 130/1000 130PHQ OTA
$ 4,200.00
Tecnosky
Apochromatic refractor AP 130/900 OWL EDT Triplet OTA
$ 2,390.00
Tecnosky
Apochromatic refractor AP 180/1260 OWL SLD Triplet OTA
$ 18,500.00
Askar
Apochromatic refractor Pro APO AP 90/500 Quintuplet OTA
$ 2,490.00
Levenhuk
Apochromatic refractor AP 72/432 ED FT72 Ra OTA
$ 540.00
APM
Apochromatic refractor AP 180/1260 SD F/7 4.2" ZTA OTA
$ 17,000.00
Vixen
Apochromatic refractor AP 81/625 SD81S II OTA
$ 1,470.00
Tecnosky
Apochromatic refractor AP 102/1100 ED Planet OTA
$ 870.00
TS Optics
Apochromatic refractor AP 60/360 ED TSMPT60 OTA
Our price:
RRP:
$ 433.00
$ 390.00
Tecnosky
Apochromatic refractor AP 110/660 ED OTA
$ 1,520.00
Levenhuk
Apochromatic refractor AP 66/400 ED Ra OTA
$ 530.00
Tecnosky
Apochromatic refractor AP LUX 60/360 ED OTA
$ 379.00
Levenhuk
Apochromatic refractor AP 66/400 ED Ra Carbon OTA
$ 640.00
Levenhuk
Apochromatic refractor AP 80/500 Ra R80 ED Carbon OTA
$ 800.00
Tecnosky
Apochromatic refractor AP 125/975 OWL ED OTA
$ 2,160.00
Artesky
Apochromatic refractor AP 102/714 ED OTA
$ 890.00
Askar
Apochromatic refractor AP 185/1295 Triplet OTA
Our price:
RRP:
$ 7,600.00
$ 6,600.00
Omegon
Apochromatic refractor Pro APO AP 30/135 OTA
Our price:
RRP:
$ 439.00
$ 395.00
APM
Apochromatic refractor AP 152/900 f/6 SD 3.7 ZTA OTA
$ 4,880.00
Artesky
Apochromatic refractor AP 80/560 ED OTA
$ 590.00
Vixen
Telescope AP 80/600 ED80Sf Porta-II
$ 1,410.00
Vixen
Apochromatic refractor AP 80/600 ED80Sf Advanced Polaris AP-SM Starbook One
$ 2,710.00
Vixen
Apochromatic refractor AP 80/600 ED80Sf Advanced Polaris
$ 2,220.00
Skywatcher
Apochromatic refractor AP 150/1200 EvoStar ED EQ6R GoTo
Our price:
RRP:
$ 4,880.00
$ 4,550.00
Vixen
Apochromatic refractor AP 115/890 SD115S Sphinx SXP2 Starbook Ten GoTo
$ 9,000.00
Vixen
Apochromatic refractor AP 103/825 ED AX103S Sphinx SXP2 Starbook Ten GoTo
$ 9,800.00
Vixen
Apochromatic refractor AP 103/825 ED AX103S OTA
$ 3,260.00
Meade
Apochromatic refractor AP 115/805 Series 6000 OTA
$ 3,250.00
William Optics
Apochromatic refractor AP 51/250 RedCat WIFD OTA
$ 1,200.00
William Optics
Apochromatic refractor AP 71/350 RedCat 71 WIFD OTA
$ 2,380.00
Sharpstar
Apochromatic refractor AP 100/550 Z4 OTA
Our price:
RRP:
$ 3,200.00
$ 2,870.00
Askar
Apochromatic refractor AP 71/490 Flat-Field 71F OTA
$ 870.00
Skywatcher
Apochromatic refractor AP 100/900 ED EvoStar DS Pro OTA + 0.85x Reducer/Corrector
$ 1,340.00
William Optics
Apochromatic refractor AP 51/250 RedCat 51 OTA
Our price:
RRP:
$ 1,300.00
$ 1,160.00
Omegon
Apochromatic refractor Pro APO AP 110/660 ED Carbon OTA
$ 1,790.00
Omegon
Apochromatic refractor Pro APO AP 104/650 ED Triplet OTA
$ 3,190.00
Omegon
Apochromatic refractor Pro APO AP 121/678 Quintuplet OTA
$ 4,990.00
William Optics
Apochromatic refractor AP 132/925 Fluorostar Space Gray OTA
$ 6,200.00
Omegon
Apochromatic refractor Pro APO AP 80/500 ED Carbon OTA
$ 1,190.00
Omegon
Apochromatic refractor Pro APO AP 66/400 ED OTA
$ 669.00
Omegon
Apochromatic refractor Pro APO AP 85/560 ED Triplet OTA
$ 1,890.00
Omegon
Apochromatic refractor Pro APO AP Photography Scope 72/432 ED OTA
$ 599.00
William Optics
Apochromatic refractor AP 61/360 ZenithStar ZS61 II OTA
$ 980.00
William Optics
Apochromatic refractor AP 71/350 RedCat 71 OTA
$ 2,270.00
William Optics
Apochromatic refractor AP 61/360 ZenithStar ZS61 II OTA
$ 1,040.00
OPT
Apochromatic refractor Radian AP 61/275 Raptor OTA
$ 2,270.00
William Optics
Apochromatic refractor AP 73/430 Super ZenithStar 73 Gold OTA
$ 1,090.00
William Optics
Apochromatic refractor AP 81/559 ZenithStar 81 Red OTA
$ 1,620.00
William Optics
Apochromatic refractor AP 91/540 Space Gray OTA
$ 3,250.00
TeleVue
Apochromatic refractor AP 60/360 TV60 OTA
$ 1,510.00
William Optics
Apochromatic refractor AP 91/540 Red OTA
$ 3,460.00
William Optics
Apochromatic refractor AP 132/925 Fluorostar Gold OTA
$ 6,300.00
TS Optics
Apochromatic refractor AP 76/342 EDPH Flatfield OTA
$ 1,630.00
TS Optics
Apochromatic refractor AP 76/418
$ 1,520.00
TS Optics
Apochromatic refractor AP 102/714 CF-APO 102 FPL55 Triplet OTA
Our price:
RRP:
$ 2,170.00
$ 1,960.00
TS Optics
Apochromatic refractor AP 80/480 ED Triplet Photoline OTA
Our price:
RRP:
$ 1,090.00
$ 870.00
Sharpstar
Apochromatic refractor AP 61/270 EDPH II OTA
Our price:
RRP:
$ 1,310.00
$ 1,140.00
TS Optics
Apochromatic refractor AP 150/1200 SD f/8 FPL53 OTA
Our price:
RRP:
$ 4,120.00
$ 3,140.00
TS Optics
Apochromatic refractor AP 150/1200 SD f/8 FPL53 OTA
$ 3,250.00
TS Optics
Apochromatic refractor AP 125/975 Photoline OTA
Our price:
RRP:
$ 2,060.00
$ 1,790.00
TS Optics
Apochromatic refractor AP 72/432 FPL53 Photoline OTA
$ 650.00
TS Optics
Apochromatic refractor AP 94/517 EDPH OTA
Our price:
RRP:
$ 1,680.00
$ 1,630.00
Tecnosky
Apochromatic refractor AP 90/540 OWL Triplet OTA
$ 1,660.00
Explore Scientific
Apochromatic refractor AP 127/952 ED FCD-100 Hexafoc
$ 2,550.00
TS Optics
Apochromatic refractor AP 70/474 OTA
Our price:
RRP:
$ 870.00
$ 760.00
TS Optics
Apochromatic refractor AP 60/360 PhotoLine FPL53 Red OTA
Our price:
RRP:
$ 650.00
$ 510.00
TS Optics
Apochromatic refractor AP 102/714 ED OTA
Our price:
RRP:
$ 870.00
$ 760.00
Explore Scientific
Apochromatic refractor AP 80/480 ED FCD-100 Hexafoc OTA
Our price:
RRP:
$ 1,360.00
$ 870.00
TS Optics
Apochromatic refractor AP 80/560 ED OTA
Our price:
RRP:
$ 650.00
$ 570.00
Tecnosky
Apochromatic refractor AP 70/350 Quadruplet V2 OTA
$ 1,360.00
TS Optics
Apochromatic refractor AP 70/420 CF-APO 70 FPL55 Triplet OTA
$ 910.00
Skywatcher
Apochromatic refractor AP 72/420 EvoStar 72 ED DS Pro OTA
$ 483.00
TS Optics
Apochromatic refractor AP 130/910 CF-APO 130 FPL55 Triplet OTA
Our price:
RRP:
$ 3,800.00
$ 3,200.00
Skywatcher
Apochromatic refractor AP 150/1200 EvoStar ED OTA
$ 2,710.00
Skywatcher
Apochromatic refractor AP 100/550 ESPRIT-100ED Professional OTA
Our price:
RRP:
$ 2,790.00
$ 2,610.00
Skywatcher
Apochromatic refractor AP 120/840 ESPRIT-120ED Professional OTA
$ 3,730.00
Skywatcher
Apochromatic refractor AP 80/400 ESPRIT-80ED Professional OTA
$ 1,580.00
Skywatcher
Apochromatic refractor AP 120/900 EvoStar ED DS-Pro OTA
$ 2,060.00
TS Optics
Apochromatic refractor AP 155/1240 CD-APO Deluxe OTA
Our price:
RRP:
$ 5,700.00
$ 5,200.00
TS Optics
Apochromatic refractor AP 115/800 ED Triplet Photoline OTA
Our price:
RRP:
$ 1,930.00
$ 1,740.00
TS Optics
Apochromatic refractor AP 94/414 EDPH OTA
$ 1,960.00
Tecnosky
Apochromatic refractor AP 60/360 ED FPL53 OTA
$ 540.00
TS Optics
Apochromatic refractor AP 80/560 Photoline OTA
Our price:
RRP:
$ 930.00
$ 760.00
Tecnosky
Apochromatic refractor AP 80/480 OWL Triplet OTA
$ 1,310.00
Tecnosky
Apochromatic refractor AP 130/900 SLD OWL Triplet OTA
$ 3,690.00
William Optics
Apochromatic refractor AP 61/360 ZenithStar ZS61 II OTA
Our price:
RRP:
$ 990.00
$ 870.00
APM
Apochromatic refractor AP 152/1200 ED 3.7"-OAZ OTA
$ 3,680.00
Vixen
Apochromatic refractor AP 80/600 ED80Sf OTA
$ 1,210.00
Vixen
Apochromatic refractor AP 103/795 SD103S OTA
$ 2,280.00
Vixen
Apochromatic refractor AP 55/303 Fluorit FL55SS OTA
$ 1,220.00
Tecnosky
Apochromatic refractor AP 70/420 ED V2 OTA
$ 433.00
TS Optics
Apochromatic refractor AP 102/1122 ED OTA
Our price:
RRP:
$ 1,090.00
$ 930.00
TS Optics
Apochromatic refractor AP 70/350 Imaging Star OTA
Our price:
RRP:
$ 1,520.00
$ 1,460.00
TS Optics
Apochromatic refractor AP 80/352 Imaging Star OTA
$ 1,630.00
APM
Apochromatic refractor AP 152/1200 ED 2.5"-OAZ OTA
$ 3,460.00
Refractors are telescopes where the objective consist of one or more glass lenses. The lens refracts light to a focal point. However, the exact location of the focal point depends on the wavelength (colour) of the light. This causes chromatic aberration which is noticeable as a coloured fringe around bright objects. In physics, this dependence of refraction on wavelength is called dispersion.
There is no really precise definition of the term apochromat. Most apochromats have an objective consisting of two lenses, in which a special glass is deployed. This so-called ED glass has particularly low dispersion (the abbreviation ED stands for extra-low dispersion). The ED apochromats provides a largely pure-colour image.
An objective consisting of three or four lenses will provide an even sharper image. These apochromats are called triplets or quadruplets. These can be as good as mirror optics in term of colour purity.