Experience crisp, high-contrast views of the Moon’s rugged surface, the elegant shape of Saturn’s rings, and the vibrant details of deep space objects in the Messier catalog with the Explore Scientific 127mm FCD100 Apochromatic Refractor.
This telescope offers true diffraction-limited performance in a portable and powerful design, making it an excellent option for both backyard astronomy and on-the-go stargazing. Built around a precision air-spaced triplet lens assembly, it virtually eliminates chromatic aberration and delivers sharp, color-accurate images across the field.
At the heart of its optical system is HOYA FCD100 ED glass, renowned for its ability to suppress false color and rivaling the performance of premium FPL-53 glass. All optical surfaces are treated with Explore Scientific’s EMD enhanced multi-layer coatings, boosting image brightness and contrast.
Designed with astrophotographers in mind, the telescope includes a robust 2.5" HEX focuser. This rigid hexagonal assembly provides outstanding support and can handle imaging equipment up to 10 lbs without flex or shift.
With its 952 mm focal length, integrated dew shield, and cradle ring with handle, the ED127 FCD100 balances aperture, stability, and usability—perfect for both visual and imaging applications.
CA Residents: Prop 65 WARNING(S)
⭐ Features & Benefits
- 127mm HOYA FCD100 ED Glass – Delivers stunning resolution and color accuracy, rivaling top-tier FPL-53 optics
- Air-Spaced Triplet Design – Virtually eliminates chromatic aberration for razor-sharp imaging and observation
- Fully Multi-Coated Optics – EMD coatings enhance light transmission and contrast across the full field
- Heavy-Duty 2.5" HEX Focuser – Provides smooth, rigid focusing and supports up to 10 lbs of astrophotography gear
- 952 mm Focal Length (f/7.5) – Ideal balance of magnification, field of view, and portability
- Precision Engineering – Cradle ring with handle and integrated dew shield improve handling and stability in the field
🌟 Who It’s For
- Intermediate to Advanced Observers looking for a color-pure visual experience with premium build quality
- Astrophotographers seeking a portable APO that can handle serious imaging gear with zero flex
- Deep Sky Enthusiasts wanting to observe galaxies, nebulae, and star clusters in sharp detail
- Lunar & Planetary Viewers who demand crisp contrast, excellent focus travel, and minimal false color
🎯 What You’ll Be Able to See
- High-contrast views of the Moon’s craters, rilles, and rays
- Detailed structures in Jupiter’s cloud belts and Saturn’s rings
- Bright deep sky targets like the Orion Nebula (M42), Hercules Cluster (M13), and the Andromeda Galaxy (M31)
- Splitting double stars, open clusters, and rich star fields
🎒 What’s Included
- Explore Scientific 127mm f/7.5 Triplet APO OTA
- 2.5" HEX Focuser (with coarse and fine adjustment)
- Two Extension Tubes for back focus tuning
- Cradle Ring with Handle and Vixen-Style Dovetail Plate
- Integrated Dew Shield
- 2" Star Diagonal Mirror (99% reflective dielectric coating)
- Explore Scientific 2N1 Hybrid Finder Scope Base (finder not included)
📦 Telescope Weight: 18 lbs
❌ Hard case and finder scope sold separately
Specs
| Item Number | FCD100–127075–02 |
|---|---|
| Focal Length | 952 mm |
| Focal Ratio | f/7.5 |
| Limiting Magnitude | 13 |
| Resolution | 0.9 arcseconds |
| Tube Length (w/ Dew Shield) | 41.75 in (1060 mm) |
| Tube Length (w/o Dew Shield) | 33.25 in (849 mm) |
| Optical Tube Diameter | 130 mm |
| Weight | 18 lbs (8.2 kg) |
Warranty Information:
This product includes a Limited One-Year USA Warranty, which converts to the Explore STAR Transferable Extended Life of the Product Warranty when registered within 60 days of purchase.
To activate your warranty, register your product at:
www.explorescientific.com/pages/product-registration