[Domestic Genuine Product] Askar FMA180 Pro Telescope Tube, 40mm Aperture, ED 6-element Compact Astrograph SHA0009P… Vairāk

● The FMA180 pro telescope is a compact telescope with a 40mm aperture, 180mm focal length, and F4.5 aperture ratio. It features a completely redesigned optical and body construction compared to the conventional "Askar FMA180," and bears the "pro" designation, resulting in a sharper, less aberration-producible compact astrograph. Weighing only 0.8kg and with a compact length of 167.5mm, it can be mounted on various mounts, including portable equatorial mounts, for astrophotography. ● The lens configuration is a flat-field design with 6 elements in 6 groups, including 2 ED lenses. With an image circle of φ44mm, it can be used as a high-performance astrograph compatible with imaging using full-frame cameras. The back focus from the rear of the telescope is 55mm. ● An inner focusing system is employed, where the overall length of the telescope remains unchanged when adjusting the focus, increasing the rigidity of the entire system and achieving more robust and smooth focusing. ● The eyepiece side is equipped with a 360° rotation mechanism as standard. Furthermore, the focus and rotation mechanism locking knobs are large knurled types, significantly improving operability when wearing gloves or in dark conditions. ● A finder base capable of mounting a finder dovetail plate with a base width of approximately 34mm is included as standard, making it easy to attach options such as autoguiders. ● The camera connection uses an M48×P0.75mm connector, which minimizes vignetting. The M48 adapter has a structure that allows for the internal storage of an M48 filter, accommodating various shooting styles and subjects. ● A narrow dovetail plate with a base width of approximately 44mm is included as standard. It can be mounted directly onto many manufacturers' mounts. Removing the plate transforms it into a finder leg with a base width of approximately 34mm, making it easy to attach to the finder dovetail mounts of other telescopes. Effective aperture: 40mm Focal length: 180mm Aperture ratio: F4.5 Back focus: 55mm from the rear end of the M48 adapter Lens construction: 6 elements in 6 groups (including 2 ED lenses) Focuser: Helicoid inner focus Overall length: 167.5mm Barrel/hood diameter: 58mm Weight: 0.8kg