Askar Flattener 1.0x for 140 APO
US$ 348.66The 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
US$ 348.66The 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
US$ 348.66The 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.- -3%
Celestron Reducer Lens 0.7x - EdgeHD 800
Regular Price: US$ 447.39
US$ 436.03
The EdgeHD .7x Focal Reducer Lens makes your EdgeHD 800 one full f-stop faster than f/10, doubling the equivalent exposure at f/10
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