The Askar 0.75x Reducer for 71F APO Telescope is an essential accessory for astrophotography. Firstly, it increases the focal ratio of the Askar 71F APO telescope to f/5.2, significantly reducing the time required for image capture. Secondly, it corrects optical aberrations at the edge of the image, ensuring perfectly pinpoint star images across the entire field of view during image capture.
The three-element reducer features a 44 mm image circle, making it fully suitable for use with full-frame cameras. On the camera side, M48 and M54 threads are available, allowing for wide compatibility with different systems. The product provides the classic 55 mm back focus distance.
Inside, a 2" filter thread is available.