Explore Scientific · Apochromat Refractor
Explore Scientific ED102 FCD100
Refined optics, serious performance: the ED102 FCD100 brings apochromatic clarity to a capable 102mm refractor.
Price updated Mar 22, 2026
Performance Scores
Overview
The Explore Scientific ED102 FCD100 is a 102mm apochromatic refractor built around FCD100 glass, a high-dispersion optical material that suppresses chromatic aberration effectively across the visible spectrum. With a 714mm focal length at f/7, it sits in useful middle ground, wide enough for large nebulae and open clusters, yet capable of delivering sharp planetary detail when conditions allow. The carbon fiber tube keeps the assembled weight at roughly 7 pounds, which matters when you are deciding how much mount you need to support it.
The Vixen-style dovetail plate with cone-angle adjustments gives you flexibility when fitting this to most mid-range equatorial mounts, though you will want a mount rated comfortably above the tube weight to get steady tracking. A finder scope is included, which helps with initial alignment. It is worth noting that this product currently has very limited user review data available, so firsthand community feedback is sparse.
The optics pedigree of FCD100 glass is well established in the broader market, but prospective buyers should weigh that context carefully and, where possible, seek hands-on impressions before committing at this price point.
At a Glance
f/7
Focal Ratio
3.18kg
Weight
Specifications
Key Features
- 102mm FCD100 apochromatic objective reduces chromatic fringing across the visible spectrum
- 714mm focal length at f/7 balances wide-field and planetary observation in a single instrument
- Carbon fiber tube construction reduces weight to approximately 7 pounds and improves thermal stability
- Vixen-style dovetail with cone-angle adjustments allows precise, secure fitting to compatible mounts
- Equatorial mount compatibility supports tracked, long-duration observation and basic astrophotography
- Finder scope included for easier field navigation and initial target acquisition
- Compact and manageable size makes transport to dark sites practical for solo observers
Customer Reviews
1 reviews
I bought this a month ago from the manufacture. I must say I am very disappointed currently. My cheap 500 dollar telescope has out performed this scope. One must install the extension tubes to even make it come into focus. The clarity is inferior and for the price I expected so much better, sadly. A...