TS Optics 0.73× 2-inch Coma Corrector This Ackermann-designed corrector reduces Newtonian focal length while correcting coma. At f/4, the nominal resulting focal ratio is f/2.92. It needs adequate focus clearance and careful alignment for sharp corner stars.
Manufacturer model: TS2KORRR · Specifications checked against manufacturer data on 2026-11-04
This Ackermann-designed corrector reduces Newtonian focal length while correcting coma. At f/4, the nominal resulting focal ratio is f/2.92. It needs adequate focus clearance and careful alignment for sharp corner stars.
Spacing to the sensor and the telescope's available focus distance are separate measurements. Source field-size wording differs: use the conservative 22 mm fully corrected value; inspect edge performance toward 30 mm. Suitable focus travel is essential.
| model | TS2KORRR |
|---|---|
| reduction | 0.73× |
| elements | 3 |
| coatings | Fully multi-coated |
| telescope connection | 2-inch barrel |
| camera connection | M48×0.75 |
| sensor spacing | 66.85 mm from camera-side M48 thread |
| telescope focus requirement | 85 mm above focuser's 2-inch socket |
| body length | 56 mm |
| telescope filter thread | M48×0.75 |
| focal ratio range | Description: f/3.5–f/8; supplier table: f/4–f/6 |
| image field | 22 mm fully corrected / usable to 30 mm (FLO); Nimax labels 30 mm corrected |
Sources: Supplier 68943; Original-model dealer reference.
Spacing to the sensor and the telescope's available focus distance are separate measurements. Source field-size wording differs: use the conservative 22 mm fully corrected value; inspect edge performance toward 30 mm. Suitable focus travel is essential.
| Elements | 3 |
|---|---|
| Sensor spacing | 66.85 mm from camera-side M48 thread |
| Telescope focus requirement | 85 mm above focuser's 2-inch socket |
| Body length | 56 mm |
| Telescope filter thread | M48×0.75 |
| Image field | 22 mm fully corrected / usable to 30 mm (FLO); Nimax labels 30 mm corrected |
Data sheet
TS Optics 0.73× 2-inch Coma Corrector This Ackermann-designed corrector reduces Newtonian focal length while correcting coma. At f/4, the nominal resulting focal ratio is f/2.92. It needs adequate focus clearance and careful alignment for sharp corner stars.
Manufacturer model: TS2KORRR · Specifications checked against manufacturer data on 2026-11-04
