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Telescopes > Skywatcher > EvoStar > Skywatcher Apochromatic refractor AP 120/900 EvoStar ED DS-Pro OTA
Product no.: 15058

Apochromatic refractor AP 120/900 EvoStar ED DS-Pro OTA

$ 2,060.00 incl. VAT, plus shipping costs
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Product description

More about the series EvoStar...

AP 120/900 ED telescope:

This refractor is well corrected for chromatic aberration and is an ideal telescope for high-contrast planetary observing. It is also a 'fast' ED apochromat, well suited to astrophotography. With its 120mm aperture and 900mm focal length, this doublet lens ED telescope gives an excellent image and collects around 290 times more light than the naked eye alone (with a fully dilated exit pupil of 7mm). The use of FPL-53 ED glass reduces visible chromatic aberration to virtually zero. ED (Extra low Dispersion) glass has very low colour dispersion and a low refractive index. Excellent correction of chromatic aberration is achieved by the combination of this special glass with other types of optical glass. Even higher contrast is achieved by the employment of crown glass from the German glass firm Schott. The Metallic High Transmission Coating on the lenses ensures high light transmission. Star clusters appear especially aesthetically pleasing in this refractor, with stars in the image often coming extremely close to being 'pin sharp'. In conjunction with an optional field flattener, it provides a sharp image across the entire field of view, and the 'fast' f7.5 aperture ratio is useful for photography as exposures can be kept very short despite the focal length. The telescope can also be used on smaller mounts as the relationship between aperture and OTA length means it only exerts a low leverage effect. The OTA has a solid 2-inch Crayford focuser with 1:11 reduction ratio for fine focusing - especially important in astrophotography. Together with the appropriate accessories, the refractor can also be used as a powerful spotting scope for a wide range of nature watching applications. The OTA is also visually a real gem, featuring an elegant design for the both OTA and finder scope in an aesthetically pleasing shimmering black. The white dew shield and tube ring clamps are a stylish contrast in the overall design.

The advantages in a nutshell:

  • particularly good colour correction from ED optics
  • high quality glass from Schott, German market leader in glass manufacture
  • metallic high transmission coatings

Included in delivery:

  • OTA
  • white tube ring rings clamps plus prism rail
  • 2" 1:11 reduction ratio Crayford focuser with 1.25" adapter
  • 2" star diagonal

It not only matters which telescope you buy but also where you buy it. Our additional services:

  • We are a leading telescope dealer and know the devices we sell. Our customer service team will gladly help you after your purchase if you have problems with assembly or operation.
  • We provide a copy of the 80-page Telescope ABC beginners handbook with every telescope.
  • We also provide an edition of the exciting astronomy magazine, “Sterne und Weltraum” with each telescope.

Specifications

Optics


Type
Refractor
Type of build
Apochromat
Aperture (mm)
120
Focal length (mm)
900
Aperture ratio (f/)
7,5
Resolving capacity
0,96
Limit value (mag)
12,2
Light gathering capacity
294
Max. useful magnification
240
Tube weight (kg)
5,2
Tube construction
Full tube
lens design
Doublet

Focuser


Type of build
Crayford
Connection ( to eyepiece)
2
Gear reduction
1:11 fine focusing

Mount


GoTo control
no
Mounting type
no mount
Type of build
OTA

Included accessories


2'' eyepieces
LET Okular 28mm
Finder scope
9x50
Deviating optics
2", 90° star diagonal
Dew Shield
yes
Transport cases
yes
Prism rail
Vixen-Style
Tube clamps
yes

General


Series
EvoStar
Special recommendation
yes

Area of application


Moon & Planets
yes
Nebulae & galaxies
yes
Nature Observation
no
Astrophotography
yes
Sun
no (Only with appropriate Sun filter)

Recommended for


Beginners
no
Advanced
yes
Observatories
no

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*All prices include VAT plus shipping costs.

Skywatcher Apochromatic refractor AP 120/900 EvoStar ED DS-Pro OTA
Drawtube
Skywatcher Apochromatic refractor AP 120/900 EvoStar ED DS-Pro OTA

Transport cases

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