Explore Scientific ED APO 127mm FCD-100 CF HEX Telescope – Madeira Optics

Explore Scientific ED APO 127mm FCD-100 CF HEX Telescope

  • €2,779.00
    Unit price per 
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Highly corrected 127mm air-spaced triplet apochromat (with three lenses) and carbon fiber tube and a 2.5” high-precision Hexafoc focuser.

Apochromats are the ultimate choice in small to medium sized telescopes: the combination of compactness, transportability, very high image contrast and sharpness together with the possibility to make excellent astrophotos cannot be bested. The advances in glass manufacturing during the last few years have made true apochromats available to more astronomy enthusiasts than ever before. Explore Scientific FCD-100 CF Hex represents another major improvement in this field – the overall correction (color and spherical) is setting new standards in this price class. The optical design shows a polystrehl value of 0.97 indicating a level of correction that is absolutely top of the line.

This excellent apochromat is a very versatile telescope: the fast f-ratio makes short exposure times possible. The high contrast and sharpness of the image provide breathtaking views of large objects like the North America nebula or the Andromeda galaxy as well as tack sharp planetary images. The telescope is lightweight and compact – the dew shield slides down the tube to minimize size for transportation. Revolutionary glass and precision manufacturing created a telescope that offers observing joy on the highest level. This does not only qualify this telescope as the ideal travel scope, it is also the perfect choice for fast observations and for astrophotography. The excellent 2.5” Hexafoc focuser with 10:1 reduction is perfect for this – the large inner diameter of 65mm prevents vignetting by the focuser when the telescope is used for astrophotography with large sensors.


  • Three lens apochromat with two air spaces
  • Hoya FCD-100 glass for maximal color fidelity
  • Weight: 5.2kg, lightweight due to carbon fiber tube
  • High-end 2.5” Hexafoc 10:1 deluxe focuser
  • 2” star diagonal 99% included
  • Extension tubes for focuser (2pcs)
  • Handle features mounting place for cameras
  • 44mm universal dovetail with stainless steel protection included (fits Super/Great Polaris, EQ5, LXD75, EXOS-II)
  • Dew-shield slides onto tube for easy transport

The kit includes:

  • Optical tube with retractable dew-shield
  • 2.5” Hex focuser with 1:10 gear reduction
  • 2” star diagonal 99% reflectivity
  • Tube rings with dovetail plate and handle
  • Extension tubes for focuser (2pcs)
  • Dust caps for front-lens and focuser
  • Universal finder slot
Brand Explore Scientific
Warranty, years 2
Package size (LxWxH), cm 79x17.6x17.6
Shipping Weight, kg 6.9
Optical design refractor
Optical scheme 3-element apochromat
Optics material ED
Optics coating fully multi-coated
Objective lens diameter (aperture), mm 127.0
Focal length, mm 952
Highest practical power, x 250.0
Aperture ratio f/7.5
Eyepiece barrel diameter, in 2
Focuser 2.5” Hexafoc, 2-speed (10:1)
Optical tube material CFRP (carbon fiber-reinforced plastics)
User level experienced users, professionals
Observed object planets of the Solar System and deep-sky objects, terrestrial objects