The Askar 0.8x Focal Reducer for the 160APO Telescope is an essential accessory for astrophotography. It increases the speed of the Askar 160APO telescope to f/5.6, significantly reducing the exposure time required for imaging. It also corrects optical aberrations at the edge of the field, delivering perfectly pinpoint stars across the entire field of view.
The focal reducer features a 44 mm image circle, making it fully suitable for use with full-frame cameras. On the camera side, it offers M48, M54, and M68 threads, ensuring broad compatibility with different systems. With an M48 connection, it provides the standard 55 mm backfocus distance, which increases to 73 mm with an M54 thread and 79.5 mm with an M68 thread.