The Explore Scientific FCD-100 Alu Hex features a meticulously designed 127 mm air-spaced triplet apochromatic lens (comprised of three lenses) encased in an aluminium tube, paired with a high-precision 2.5'' HEXAFOC focuser. A new addition is the hybrid viewfinder shoe, compatible with various viewfinder holders, enhancing its versatility.

Apochromats represent the pinnacle choice for aficionados seeking compact, easily transportable telescopes without compromising on image quality. They deliver unparalleled image contrast and sharpness, ideal for both visual observations and astrophotography. The advancements in optical glass technology have made superior apochromats more accessible, and the Explore Scientific FCD-100 Alu Hex stands as a testament to this progress. Its optical system, boasting a polystrehl value of 0.97, signifies near-perfect correction of both color and spherical aberrations, thus redefining expectations in its price range.

This telescope is a marvel of adaptability and performance, offering rapid exposure times due to its fast f-ratio. It presents breathtaking views of celestial phenomena from expansive nebulae to detailed planetary surfaces. Its compact and lightweight design, complete with a retractable dew shield, ensures ease of transportation. The innovative use of high-quality glass and precision engineering yields a telescope that excels in delivering superior observational experiences, making it an excellent choice for both travel and astrophotography. The 2.5'' HEXAFOC focuser, with its 10:1 reduction and a generous 65 mm inner diameter, eliminates vignetting, making it ideal for use with large sensor cameras.

Explore Scientific offers these premium Triplet ED APO Refractors across three distinct product lines:

• Essential Line: Features HOYA FCD-1 Glass lenses, an aluminium tube, and a 2.0'' Rack and Pinion Focuser among other high-quality components.
• Professional Line: Upgraded with HOYA FCD-100 Glass lenses, available in both aluminium and carbon fiber tubes, and includes a 2.5'' HEXAFOC Focuser for enhanced precision.
• High-End Line: Equipped with OHARA FPL-53 Glass lenses, carbon fiber tubes, and a 3.0'' Feather-Touch Focuser for unmatched quality and performance.

Specifications:

• Aperture: 127 mm
• Focal Length: 952 mm
• Focal Ratio: f/7.5
• Optical Design: Triple-lens apochromat with FCD-100 glass
• Weight: 7.7 kg
• Back Focus: 150 mm above a 2'' adaptor
• Features: Hybrid viewfinder shoe

Included in the Package:

• Optical tube with a retractable dew shield
• 2.5'' HEX focuser with 1:10 gear reduction
• 2'' Star Diagonal with 99% reflectivity
• Tube rings, dovetail plate, and handle
• Dust caps for the lens and focuser
• Hybrid viewfinder shoe

Suitable Applications: Ideal for deep sky, lunar, and planetary observation and photography, catering to advanced amateurs, specialists, researchers, and visual enthusiasts alike.