OTA · MSRP $1,199
Astro-Tech 8" f/8 Ritchey-Chrétien Astrograph, Steel Tube
Key specifications
| Aperture | 203.2 mm |
|---|---|
| Focal length | 1625 mm |
| Focal ratio | f/8 |
| Optical design | Ritchey-Chrétien |
| Back focus | 254 mm |
| Weight | 8.57 kg |
All specifications
| Lens coating | 96% reflectivity enhanced aluminium, quartz overcoat |
|---|---|
| Focuser type | Dual-speed 2" linear Crayford, 10:1, 50mm travel, rotatable |
| Tube length | 457.2 mm |
About
A true Ritchey-Chrétien astrograph with hyperbolic low-expansion quartz mirrors in a steel tube, the more affordable sibling of the carbon-fibre AT8RC. Ten knife-edge baffles, a rotatable dual-speed 2" linear Crayford focuser, 2" and 1.25" compression-ring holders and both Vixen and Losmandy dovetail rails.
Where to buy
Retailer links may earn astro.n-minus a commission. Prices and availability are the retailer's.