Achromat
An achromat or an achromatic lens system is understood to mean a lens system in which the focal length is the same at at least two wavelengths. This reduces the effects of chromatic aberrations and spherical aberrations.
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Celestron AstroMaster 70AZ met smartphone en maanfilter
€ 199,00Aperture (mm): 70Focal length (mm): 900Speed (f): 13Ready to ship in 24h -
Celestron StarSense Explorer LT 80AZ
€ 309,00Aperture (mm): 80Focal length (mm): 900Speed (f): 11Ask us for the delivery time -
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DWARF II smart telescoop deluxe uitvoering
Sale! Original price was: € 599,00.€ 539,00Current price is: € 539,00.Aperture (mm): 24Focal length (mm): 100Speed (f): 4.17Ask us for the delivery time -
Celestron AstroMaster LT 70AZ additional photo adapter moon filter
€ 169,00Aperture (mm): 70Focal length (mm): 700Speed (f): 10Ask us for the delivery time -
Celestron AstroMaster 70AZ
€ 179,00Aperture (mm): 70Focal length (mm): 900Speed (f): 13Ask us for the delivery time -
Celestron AstroMaster 70 EQ refractor
€ 229,00Aperture (mm): 70Focal length (mm): 900Speed (f): 13Ready to ship in 24h -
Celestron AstroMaster 80AZ Short telescoop
€ 239,00Aperture (mm): 80Focal length (mm): 400Speed (f): 5Ask us for the delivery time -
Celestron AstroMaster 80EQ met motordrive
€ 289,00Aperture (mm): 80Focal length (mm): 900Speed (f): 11Ready to ship in 24h -
Celestron StarSense Explorer LT 70AZ
€ 219,00Aperture (mm): 70Focal length (mm): 700Speed (f): 10Ready to ship in 24h -
Celestron StarSense Explorer DX 102AZ
€ 539,00Aperture (mm): 102Focal length (mm): 660Speed (f): 6.5Ready to ship in 24h -
Celestron AstroMaster 90AZ
€ 269,00Aperture (mm): 90Focal length (mm): 1000Speed (f): 11Ask us for the delivery time -
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Celestron AstroMaster 90EQ
Sale! Original price was: € 309,00.€ 289,00Current price is: € 289,00.Aperture (mm): 90Focal length (mm): 1000Speed (f): 11Ready to ship in 24h -
Celestron Advanced VX 6 inch Refractor
€ 2.045,00Aperture (mm): 150Focal length (mm): 1200Speed (f): 8Ask us for the delivery time -
Celestron Astro Fi 90 Refractor telescoop
€ 469,00Aperture (mm): 90Focal length (mm): 910Speed (f): 10.1Ask us for the delivery time -
Celestron Inspire 80AZ refractor telescoop
€ 269,00Aperture (mm): 80Focal length (mm): 900Speed (f): 11Ready to ship in 24h -
Celestron Inspire 100 refractor telescoop
€ 389,00Aperture (mm): 100Focal length (mm): 660Speed (f): 6.6Ready to ship in 24h -
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Celestron NexStar 102SLT
Sale! Original price was: € 749,00.€ 659,00Current price is: € 659,00.Aperture (mm): 102Focal length (mm): 660Speed (f): 6.47Ask us for the delivery time -
Celestron PowerSeeker 60AZ telescoop
€ 119,00Aperture (mm): 60Focal length (mm): 700Speed (f): 12Ready to ship in 24h -
Celestron PowerSeeker 60AZ telescoop met boek Sterrenkijken voor kinderen
€ 136,95Aperture (mm): 60Focal length (mm): 700Speed (f): 12Ready to ship in 24h -
Celestron Powerseeker 60EQ
€ 149,00Aperture (mm): 60Focal length (mm): 900Speed (f): 15Ready to ship in 24h -
Celestron TravelScope 70 telescoop
€ 119,00Aperture (mm): 70Focal length (mm): 400Speed (f): 5.7Ready to ship in 24h
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Physical store
100% safe shopping
large stock
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Physical store
100% safe shopping
large stock
Delivery service
The most common type of achromat is the achromatic doublet, which consists of two lens components that exhibit different degrees of dispersion (color dispersion).
Usually one component is concave (concave) and made of flint glass, and the other is convex (convex) and made of crown glass. Of these two, crown glass has the lowest dispersion.
Other low dispersion glasses can also be used for this purpose. The two lens components were mounted close together, usually even glued together; together they are designed in such a way that the chromatic aberration of one compensates for that of the other.
Celestron Astromaster 70AZ
The AstroMaster 70 AZ is the entry-level model of the series that still offers the possibility to easily track an object in the sky.
The 70mm aperture and azimuthal mount make it an excellent travel companion for your first forays into the starry sky. Enjoy Saturn, the bands of Jupiter and the overwhelming amount of stars in star clusters such as M13 and M15. This telescope is also interesting for the advanced amateur astronomer as a travel telescope and can also be used for observing terrestrial objects. The Astromaster 70AZ comes with two eyepieces of 20 and 10 mm, red dot viewfinder, the Celestron Planetarium Starrynight software and an accessory tray.
The 70mm aperture and azimuthal mount make it an excellent travel companion for your first forays into the starry sky. Enjoy Saturn, the bands of Jupiter and the overwhelming amount of stars in star clusters such as M13 and M15. This telescope is also interesting for the advanced amateur astronomer as a travel telescope and can also be used for observing terrestrial objects. The Astromaster 70AZ comes with two eyepieces of 20 and 10 mm, red dot viewfinder, the Celestron Planetarium Starrynight software and an accessory tray.
Celestron StarSense Explorer DX102
The Celestron StarSense technology is the latest trend in telescopes. Forget complicated star charts, inaccurate planetarium apps and computerized montages. With the StarSense Explorer DX102 refractor and its 102mm aperture with optical XLT coating you enjoy improved light transmission and the StarSense technology makes locating objects very easy, fast and accurate.
Within minutes of setting up the telescope, you’ll be navigating the universe with confidence. Place your phone in the unique StarSense dock and launch the StarSense Explorer app (compatible with Android and Apple). After aligning your phone with the telescope’s optics (a quick 2-minute procedure), StarSense Explorer generates a list of all currently visible celestial objects and the exploration can begin.
Celestron Advanced VX 6-inch refractor
This 150mm refractor\lens telescope is ideally suited for moon and planet observation with a lot of sharpness and contrast. The 150mm aperture without any form of obstruction makes this telescope a very bright telescope. Somewhat brighter nebulae are therefore also excellent to admire with these binoculars. With some adjustments and filters you can also use the telescope for astrophotography. The companion Advanced VX mount sets a standard for medium-sized telescopes and offers many of the features found on Celestron’s most advanced equatorial mounts.
The Advanced VX mount is designed to deliver superior performance while taking advantage of Celestron’s most advanced technologies: All-Star Polar Alignment, Celestron PWI Telescope Control Software, SkyAlign and Permanently Programmable Periodic Error Correction (PPEC).
The Advanced VX mount is designed to deliver superior performance while taking advantage of Celestron’s most advanced technologies: All-Star Polar Alignment, Celestron PWI Telescope Control Software, SkyAlign and Permanently Programmable Periodic Error Correction (PPEC).
