80mm high-correction triple apochromat (three lenses) with aluminum tube and 2.5" HEXAFOC precision eyepiece extension.

Apochromats are in the small to medium aperture range, the measure of all things : the combination of good portability, very high contrast and image sharpness with the excellent possibilities these devices offer for astrophotography , cannot be surpassed here. Advances in glass manufacturing have made high-quality apochromats possible in recent years for ever-widening buyers. With the new Explore Scientific FCD-100 Alu Hex , this development has reached another high point: The color purity of this device sets new standards in this price range. The optics design achieves a polystrehl of 0.979 - a value which represents the highest correction.

This excellent little apochromat is a versatile usable device: fast focal ratio of f/6 enables short exposure times for astrophotography, the high sharpness and excellent contrast make field observations such as the North American nebula or Andromeda galaxy as possible as knackscharfe planetary observations . The device is extremely light and compact - the dew can be inserted to save space. Modern eyewear and painstaking manufacturing have made telescopes here are emerging, offering new levels of pure observation enjoyment. Thus, this telescope is fully recommended not only as a travel scope, but also for quick observation in between, as well as for astrophotography. The high-quality 2.5 " HEXAFOC focuser with 1:10 reduction completes the picture of this all-round device from - a clear diameter of 65 mm also occurs in astrophotography with larger chips without vignetting through the eyepiece as this can be the case with smaller diameters.

The popular SCIENTIFIC EXPLORE SCIENTIFIC triple APOs are offered in the following 3 product lines:

Essential Lines:
HOYA FCD-1 glass element , AL tube, 2.0 "Rack & Pinion focuser with 1:10, 2.0" mirror diagonal with 99% reflectivity (see Art. No.: 0112084 (AL), 0112106 (AL), 0112132 (AL), 0112155 (CF ))

Professional Line:
HOYA FCD-100 glass element , AL / CF tube, HEXAFOC 2.5 " focuser with 1:10, 2.0“ mirror diagonal with 99% reflectivity (see Art. No.: 0112086 (AL), 0112108 (AL), 0112109 (CF), 0112134) (AL), 0112135 (CF))

High End Line:
Ohara FPL 53 glass element, Carbon tube (CF), 3.0 HEXAFOC or Feather-Touch focuser with 1:10, 2.0“ mirror diagonal with 99% reflectivity (see Art.Nr.: 0112115(CF), 0112140(CF ), 0112165 (CF)


Technical data

• Opening: 80mm
• Focal length: 480mm
• Aperture Ratio: f/6
• Three tongue apochromat with two air gaps and FCD-100 center element
• Focus position: 150mm from the plug connection
  
  
  

Endowment

• Optical tube
• "2" 99% zenith mirror.
• Two extension sleeves to extend the eyepiece
• Prismatic rail Level GP
• Dust caps for lens and focuser
• Universal viewfinder socket