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.
Compatibility and setup
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.
Technical specifications
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
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.
Additional specifications
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
68943
Datasheet
Cameraaansluiting
M48×0.75
Coatings
Fully multi-coated
Bereik openingsverhouding
Description: f/3.5–f/8; supplier table: f/4–f/6
Model
TS2KORRR
Reductie
0.73×
Telescoopaansluiting
2-inch barrel
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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
