OTA · 2015–
Astro-Tech AT12RCT
Key specifications
| Aperture | 305 mm |
|---|---|
| Focal length | 2432 mm |
| Focal ratio | f/8 |
| Optical design | Ritchey-Chrétien |
| Back focus | 288 mm |
| Weight | 23.6 kg |
All specifications
| Lens coating | 99% reflectivity multi-layer dielectric mirror coatings |
|---|---|
| Focuser type | 3" Crayford, 2" and 1.25" adapters |
| Tube length | 841 mm |
| Dovetail | Losmandy |
About
12-inch (305 mm) f/8 true Ritchey-Chrétien astrograph, 2432 mm focal length, in a carbon-fiber Serrurier truss tube with quartz hyperbolic mirrors and 99% dielectric coatings. Built for large-format CCD/DSLR imaging with a long 288 mm back focus; 3" dual-speed Crayford focuser, 3-fan cooling.
Where to buy
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