The TS Superflat GPU coma corrector is one of the best correctors for astrophotography through fast Newtonians.
- 4-element coma corrector for excellent imaging in the field and on the axis.
- Designed by Gyulai Pal in Hungary (GPU-Optics)
- Perfectly suitable for Newtonian telescopes with focal ratios of f/4 - provides very good results from f/3.5 to f/6.
- Very tolerant against tilting.
- Focal length is not changed.
- Camera connection through M48 thread.
- For better stability and accuracs, the corrector can be screwed to the focuser. Connection adapters for cameras and focusers are available.
FullFrame f/3.9 reducer for Askar FRA400 - Allows you to reduce the Askar FRA400 to f/3.9 with a flattened field for FullFrame - Diagonal equal to 44mm. Integrated 2" thread - M48x0.75 connection. Backfocus 55mm
Coma corrector for Newton f/4 Quattro telescopes. Requires the M48 photo ring.
Askar Reducer 0.6x for 103 APO
€ 399.00The 0.6x reducer can bring the focal ratio of the Askar 103APO to F4, also providing field flattening. Askar 103APO adopts a detachable tube design, where the back of the tube can be removed when using the 0.6x reducer, allowing the telescope to have the length needed to achieve an F4 focal ratio.
Askar Reducer 0.8x for 140 APO
€ 399.00The 0.8x reducer can bring the focal ratio of the Askar 140APO to F5.6. This is a standard gearbox with field flattening capability. A shorter focal ratio allows the OTA to have a wider field of view and faster exposure times, making it suitable for capturing large areas of nebulae, star clusters and faint, fast-moving celestial objects.
Askar Flattener 1.0x for 140 APO
€ 399.00The 1.0x flattener does not change the focal ratio of the telescope itself. After attaching it to the Askar 140APO, it still maintained a focal ratio of 7. The flattener corrects field curvature and coma, resulting in flatter field edges and finer star points.
Askar Reducer 0.8x for 185 APO
€ 399.00The 0.8x reducer can lower the focal ratio of the Askar 185APO to F5.6. This is a standard gearbox with field flattening capability. A shorter focal ratio allows the OTA to have a wider field of view and faster exposure times, making it suitable for capturing large areas of nebulae, star clusters and faint, fast-moving celestial objects.
Askar Flattener 1.0x for 185 APO
€ 399.00The 1.0x flattener does not change the focal ratio of the telescope itself. After being attached to the Askar 185APO, it maintained a focal ratio of 7. The flattener corrects field curvature and coma, resulting in flatter field edges and finer star points.
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