OTA · 2022–
Astro-Tech AT90EDX
Key specifications
| Aperture | 90 mm |
|---|---|
| Focal length | 540 mm |
| Focal ratio | f/6 |
| Optical design | Triplet APO |
| Weight | 5.53 kg |
All specifications
| Focuser type | 3.2" dual-speed rotating R&P 10:1, CAA |
|---|---|
| Tube length | 444.5 mm |
| Dovetail | Losmandy |
About
90 mm f/6 air-spaced apochromatic triplet (540 mm focal length) with an FCD-100 ED element, interferometer-tested to a guaranteed ≥0.95 Strehl at 550 nm. A premium grab-and-go imaging/visual APO derived from the TMB-92/AT92 lineage (reworked by Roger Ceragioli).
Where to buy
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