Explore Scientific Apochromatic refractor AP 127/952 ED FCD-100 Hexafoc (53293)

FCD-100 Optical Apochromatic Refractor: Setting the Gold Standard

The FCD-100 optical apochromats represent the pinnacle of small and medium-sized aperture telescopes. These three-element apochromats, featuring special FCD-100 glass by Hoya, Japan, establish a new benchmark for color purity in their price range. With an impressive polystrehl value of 0.97, the optical design achieves exceptionally high correction.

Versatile Performance
This exceptional apochromat excels in various astronomical applications:

• Fast aperture ratio for quick astrophotography exposures

• High image quality and contrast for broad observations

• Ultra-clear planetary views

Compact and Portable
Despite its capabilities, this telescope remains relatively lightweight and compact. The retractable dew cap further enhances its portability.

Premium Focuser
A high-quality 2.5" Hexafoc drawtube with 1:10 reduction complements the superior optics. Its large free diameter prevents vignetting with larger camera sensors, a common issue with smaller focusers.

Specifications

Optical System

• Type: Refractor (Apochromat)

• Aperture: 127 mm

• Focal Length: 952 mm

• Focal Ratio: f/7.5

• Resolving Power: 0.91 arcseconds

• Limiting Magnitude: 12.3

• Light Gathering Capacity: 330x (compared to human eye)

• Maximum Useful Magnification: 250x

Tube Assembly

• Material: Aluminium

• Coating: EMD

• Weight: 7.7 kg

• Length: 800 mm

• Construction: Full tube

• Lens Design: Triplet

• Glass Material: HOYA FCD-100

Focuser

• Type: Hexafoc

• Eyepiece Connection: 2"

• Fine Focusing: 1:10 reduction

• Backfocus: 150 mm

• Free Aperture: 64 mm

Mount

• Type: OTA (Optical Tube Assembly)

• No mount included

• No GoTo control

Included Accessories

• Tube Clamps

• Dew Shield

• 2" 90° Star Diagonal

• Finder Base: Meade/Explore Scientific T-Profile

• Carrying Handle

• Vixen-Style Dovetail Rail

• Extension Tubes

Applications

• Moon & Planets: Yes

• Nebulae & Galaxies: Yes

• Nature Observation: Yes

• Astrophotography: Very Good

• Solar Observation: Not recommended (Only with appropriate solar filter)

Recommended For

• Beginners: No

• Advanced Users: Yes

• Observatories: Yes

This Professional Line series telescope offers exceptional performance for both visual astronomy and astrophotography. Its versatility and high-quality optics make it suitable for a wide range of astronomical observations and imaging applications, appealing to advanced amateur astronomers and even small observatories.