The Explore Scientific FCD-100 CF Hex is a high-performance 102mm air-spaced triplet apochromatic refractor. Encased in a lightweight carbon fiber tube, this telescope is perfect for both visual astronomers and astrophotographers. With a precise 2.5" HEXAFOC focuser, this apochromat delivers unparalleled image quality, sharpness, and portability. The use of premium FCD-100 glass ensures enhanced color and spherical correction, achieving an impressive polystrehl value of 0.97.

Its f/7 focal ratio allows for short exposure times, making it ideal for deep-sky astrophotography and capturing fine planetary details. The compact and lightweight design, along with a retractable dew shield, makes it highly portable for travel. The 2.5" HEXAFOC focuser, with its 10:1 reduction and 65mm inner diameter, ensures no vignetting, even with large sensor cameras.

Explore Scientific APO Refractor Product Lines:

• Essential Line: HOYA FCD-1 glass lenses, aluminum tube, 2.0" Rack & Pinion focuser.
• Professional Line: HOYA FCD-100 glass, carbon fiber/aluminum tube, 2.5" HEXAFOC focuser.
• High-End Line: OHARA FPL-53 glass, carbon fiber tube, 3.0" Feather-Touch focuser.

Key Features:

• Aperture: 102mm
• Focal Length: 714mm
• Focal Ratio: f/7.0
• Optical Design: Triplet apochromat with FCD-100 glass
• Weight: 3.3kg (lightweight carbon fiber tube)
• Backfocus: 150mm above a 2" adaptor

What's Included:

• Optical tube with retractable dew shield
• 2.5" HEX focuser with 1:10 gear reduction
• 2" star diagonal with 99% reflectivity
• Tube rings, dovetail plate, and handle
• Focuser extension tubes
• Dust caps for lens and focuser
• Universal finder slot

Applications:

Ideal for deep-sky observation, astrophotography, planetary observation, and imaging. Suitable for advanced amateurs, researchers, and visual enthusiasts.

Technical Data:

• Optical Design: Apochromatic Refractor
• Magnification: 20x to 200x recommended max
• ED Glass: Yes, HOYA FCD-100
• OTA Material: Carbon fiber
• Color: Carbon fiber finish
• Eyepiece Barrel Diameter: 50.8 mm
• Mount Type: Optics without mount
• Warranty: 10 years extended warranty