APO Triplet List

Astrozap carries the complete line of Explore Scientific APO Triplet refractor telescopes. Apochromatic (APO) lenses are designed to bring three wavelengths of light (red, green, and blue) into focus in the same plane. In contrast, achromatic lenses are corrected to bring two wavelengths into focus in the same plane. ED glass enhances apochromatic lens design by producing extra-low dispersion of the wavelengths of light passing through it thereby giving an even better apochromatic performance. Explore Scientific true apochromatic telescopes utilize three air-spaced elements with the ED element in the middle to bring the light of three different frequencies to a common focus, thus mitigating the effects of chromatic aberration. These telescopes deliver stunning details of the night sky’s most notable treasures.
Explore Scientific FCD100 Series 127mm f/7.5 Carbon Fiber Triplet ED APO Refractor Telescope with 2.5" HEX Focuser - SKU# FCD100-127075-CF
$3,379.99

Explore Scientific FCD100 Series 127mm f/7.5 Carbon Fiber Triplet ED APO Refractor Telescope with 2.5" HEX Focuser - SKU# FCD100-127075-CF

Explore Scientific

Reveal celestial wonders like the desolate beauty of the lunar terrain, the serene structure of Saturn’s rings or the brightest deep sky treasu...

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$3,379.99
Explore Scientific FCD100 Series 127mm f/7.5 Aluminum Air-Spaced Triplet ED APO Refractor Telescope - SKU# FCD100-127075-01
$2,799.99

Explore Scientific FCD100 Series 127mm f/7.5 Aluminum Air-Spaced Triplet ED APO Refractor Telescope - SKU# FCD100-127075-01

Explore Scientific

Reveal celestial wonders like the desolate beauty of the lunar terrain, the serene structure of Saturn’s rings or the brightest deep sky treasu...

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$2,799.99
Explore Scientific ED102-FCD100 Series Air-Spaced Triplet Telescope in Carbon Fiber - SKU# FCD100–10207-CF
$2,499.99

Explore Scientific ED102-FCD100 Series Air-Spaced Triplet Telescope in Carbon Fiber - SKU# FCD100–10207-CF

Explore Scientific

The Explore Scientific ED102-FCD100 Series Air-Spaced Triplet Telescope in Carbon Fiber, has the advantages for astrophotographers and visual a...

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$2,499.99
Explore Scientific ED127 Essential Series Air-Spaced Triplet Refractor Telescope - SKU# ES-ED127075–03
$1,999.99

Explore Scientific ED127 Essential Series Air-Spaced Triplet Refractor Telescope - SKU# ES-ED127075–03

Explore Scientific

The Original Classic Explore Scientific ED127 Air-Spaced Triplet, Retooled for the Astrophotographer:  New precision front cell with push-pull adj...

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$1,999.99
Explore Scientific ED102-FCD100 Series Air-Spaced Triplet Refractor Telescope - SKU# FCD100-10207-01
$1,999.99

Explore Scientific ED102-FCD100 Series Air-Spaced Triplet Refractor Telescope - SKU# FCD100-10207-01

Explore Scientific

Reveal celestial wonders like the desolate beauty of the lunar terrain, the serene structure of Saturn’s rings or the brightest deep sky treasures ...

View full details
$1,999.99
Explore Scientific ED80-FCD100 Series Air-Spaced Triplet Refractor Telescope - SKU# FCD100-0806-01
$1,449.99

Explore Scientific ED80-FCD100 Series Air-Spaced Triplet Refractor Telescope - SKU# FCD100-0806-01

Explore Scientific

Reveal celestial wonders like the desolate beauty of the lunar terrain, the serene structure of Saturn’s rings or the brightest deep sky treasures ...

View full details
$1,449.99
Explore Scientific ED102 Essential Series Air-Spaced Triplet APO Refractor Telescope - SKU# ES-ED10207-01
$1,199.99

Explore Scientific ED102 Essential Series Air-Spaced Triplet APO Refractor Telescope - SKU# ES-ED10207-01

Explore Scientific

The Explore Scientific ED102 Essential Series Air-Spaced Triplet APO Refractor Telescope is a true apochromat refractor that reveals our Moon’s s...

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$1,199.99
Explore Scientific ED80 Essential Series Air-Spaced Triplet Refractor Telescope - SKU# ES-ED0806-01
$899.99

Explore Scientific ED80 Essential Series Air-Spaced Triplet Refractor Telescope - SKU# ES-ED0806-01

Explore Scientific

The ED80 Essential Series Air-Spaced Triplet Refractor is a true apochromatic telescope that reveals celestial wonders like the desolate beauty of ...

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$899.99

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