Explore Scientific | ED APO 80 FCD-100 Alu Hex - OTA

80 mm high-performance triplet apochromat with aluminum tube and precision HEXAFOC 2.5’’ rack. Professional Line

• Three-lens apochromat with two air gaps
• Aperture 80 mm; Focal length 480 mm; f/6
• HOYA FCD-100 glass for high color fidelity
• High-quality HEXAFOC 2.5’’ rack with 1:10 reduction
• Includes 2’’ 99% diagonal and transport case
• 2 extension tubes for the rack
• Tube with 44 mm rotating Vixen dovetail (compatible with Super/Great Polaris, EQ5, LXD75, EXOS-II)
• Retractable dew shield for easy transport

Apochromats are considered references for small and medium apertures: their easy transport, high image contrast, and high sharpness, along with their excellent capabilities for astrophotography, make them outstanding objectives. In recent years, advances in glass finishing have further expanded the circle of buyers of high-quality apochromats. 

With the new Explore Scientific FCD-100 Alu Hex objective, this evolution has reached a new peak: the color unit of this device sets a new standard in this price range. The optical design achieves a Strehl ratio of 0.97, a value synonymous with particularly high correction. 

This small, high-quality apochromat is a very versatile device: the fast f/6 aperture ratio allows for short exposure times for astrophotography, while the great image sharpness and remarkable contrast enable observations of the North America Nebula or the Andromeda Galaxy, as well as observing planets with unparalleled sharpness. 

The device is exceptionally light and compact. The retractable dew shield saves space. State-of-the-art glasses combined with meticulous finishing have created telescopes that offer maximum viewing pleasure. This telescope is suitable not only for your travels but can also be used for quick observations from time to time as well as for astrophotography. 

The high-quality HEXAFOC 2.5’’ rack with 1:10 reduction completes the picture of this perfect device: its large free diameter of 65 mm means that even during astrophotography with large chips, no vignetting occurs, which can be the case with smaller diameters. 

PROPERTIES

• Aperture: 80 mm
• Focal length: 480 mm
• Aperture ratio: f/6
• Tube weight: 2.6 kg 
• Focal position: 150 mm from the connection
• Three-lens apochromat with two air gaps and one central FCD-100 element

DELIVERY CONTENT

• Optical tube
• 2’’ 99% diagonal
• Two extension sleeves for rack
• GP Level dovetail adapter
• Dust protection caps for the objective and the rack
• Universal finder shoe