Airy Disk APO 106mm f/6.6 Triplet FCD-100
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Superior Contrast, Stunning Optical Power
The Airy Disk APO 106mm f/6.6 Triplet is engineered for astronomers who refuse to compromise on contrast, brightness, or clarity. With its slightly over 4-inch aperture, this refractor strikes the perfect balance between portability and exceptional optical performance—making it a versatile choice for both astrophotographers and visual observers.
At its core is a premium triplet objective built with Hoya FCD-100 extra-low dispersion glass, one of the finest ED materials available. This Japanese-crafted glass nearly eliminates chromatic aberration, resulting in razor-sharp stars, crisp planetary detail, and beautifully accurate color. Whether you're capturing deep-sky images or studying the planets at high magnification, the 106mm APO delivers professional-grade results.
Its f/6.6 focal ratio provides an excellent blend of light-gathering power, contrast, and versatility—ideal for detailed lunar and planetary views as well as high-quality imaging of galaxies, nebulae, and clusters. With robust mechanical construction and precision focusing, this telescope performs reliably in the field and integrates seamlessly into advanced imaging setups.
Perfect for:
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High-contrast planetary and lunar observing
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Deep-sky astrophotography
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Intermediate to advanced astrophotographers
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Users seeking more brightness and resolution than 80–100mm class refractors
Key Features:
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106mm aperture for enhanced brightness and fine detail
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Triplet APO design with FCD-100 glass for superb color correction
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f/6.6 focal ratio optimized for a balance of contrast and imaging versatility
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Durable, precision-engineered mechanics
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Ideal for both portable setups and permanent imaging rigs
Unlock the next level of astronomical performance. The Airy Disk APO 106mm f/6.6 Triplet FCD-100 offers outstanding contrast, brightness, and clarity—bringing the universe into breathtaking focus.
Specifications:
| SKU | 106APO |
| Glass used | HOYA FCD100, CDGM |
| Aperture | 106mm |
| Focal ratio | f/6.6 |
| Focal length | 700mm |
| Coating | full wideband multi coating |
| Resolving Power | 1.09" |
| Limit mag. | 11.9mag |
| Color | White |
| Tube Material | Aluminum alloy |
| Dovetail style | Vixen |
| Focuser |
3" dual-speed 1:10 rack-and-pinion, now with 3 linear rails(Mid 2024)
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| Available FF | 0.75x FF, 0.92x FF |
| Reduce to | 525mm f/5, 644mm f/6 |
| Backfocus | adjustable |
| CAA | optional |
| For sensor | Full Frame |
| Eyepiece Clamp | 2" with 1.25" Adapter |
| Length ext | 645mm |
| Length hood in | 550mm |
| OTA+PARTS | 5.9kg |
| OTA | 5.19kg |
| OTA DIA | 114cm |
| Dustcover | SCREW |
| Ring weight | 0.45kg |
| Total mounting HW | 0.72kg |
| Box size(cm) | 67.5x34.5x25.5 |
| Box weight | 8.51kg |
| Alu Suitcase | optional |
| Alu carton size | 79x33x45.5 |
| Weight incl Suitcase | 13.39kg |
| Focuser thread front | M110x1 |
| Focuser thread rear | M80x1 |
| Rear thread depth | 5.5mm |
| Rear hole depth | 8mm |