Apochromatic ED APO 127mm f/7.5 FCD-100 refractor from Explore Scientific is designed to provide exceptional optical performance, whether for visual observation or astrophotography. Thanks to its apochromatic triplet with special Hoya FCD-100 glass, it ensures high-level chromatic correction, with a Strehl ratio of 0.97, guaranteeing sharp and chromatically aberration-free images.

The lightweight and robust aluminum tube, combined with the HEXAFOC 2.5’’ focuser with a 1:10 reduction, allows for precise focusing, even with heavy accessories and large camera sensors. Its free diameter of 65 mm eliminates vignetting in astrophotography. The f/7.5 aperture ratio makes it particularly versatile, allowing short exposure times to capture fine details of nebulae, galaxies, and planets. This telescope is compact and easy to transport, ideal for amateur astronomers looking for a powerful instrument without compromising portability.

Characteristics:

• Aperture: 127 mm
• Optics: Apochromatic triplet with Hoya FCD-100 glass for optimal chromatic correction
• HEXAFOC 2.5’’ eyepiece holder with 1:10 reduction
• Free diameter of 65 mm to avoid vignetting in astrophotography
• Robust and lightweight aluminum tube
• Tube weight: 7.7 kg

Advantages:

• Exceptional chromatic correction with FCD-100 glass for sharp and detailed images
• Suitable for both visual observation and astrophotography
• Precise and robust HEXAFOC focuser, perfect for fine focusing, even at high magnification
• Compact and lightweight construction, easy to transport for field observations
• Compatible with many accessories, including field flatteners for astrophotography

Delivered elements:

• Explore Scientific ED APO 127mm f/7.5 optical tube
• 90-degree diagonal with 99% reflectivity
• Two extension sleeves for the rack
• Clamping collars with dovetail mounting plate and handle
• Dust protection caps for the objective and the rack
• Universal finder bracket

With its triplet apochromatic design and high-quality FCD-100 glass, this apochromatic refractor is an excellent choice for amateur astronomers and astrophotographers seeking precision and versatility.