Product Overview
To provide customers with more options, Askar has launched the new FMA180 pro. FMA180 pro is similar to the FMA180 in optical design. The objective lens features a sextuplet air-spaced APO design and includes two pieces of ED (extra-low dispersion) glass, providing excellent correction of chromatic aberration. In addition to visual observations, the FMA180 pro is specially optimized for astrophotography. Compared to FMA180, FMA180 pro adds a finder base and a 360° rotator. What' s more, the focuser is designed as internal focusing which promotes its stability and ensures its performance in use as a delicate, high-quality, and compact astrograph.
FMA180 pro adopts a sextuplet air-spaced APO design with
three lenses in front and three in the rear, two of which are ED glasses,
providing excellent correction of chromatic aberration.
It still has a 44mm aperture, 180mm focal length, and 4.5
focal ratios. It supports a 44mm full-frame image circle.
Images
Rosette Nebula | ASKAR FMA180pro+zwo 294mc
Specifications
FMA180 pro Parameters | ||
| Aperture size | 40mm | |
| Focal length | 180mm | |
| Focal ratio | f/4.5 | |
| Objective lens | sextuplet with two ED glasses air-spaced APO | |
| Back focus | 55mm | |
| Image circle | 44mm | |
| Total length | 167.5mm | |
| weight | 0.8kg | |
| Rear-end thread type | M48×0.75 (built-in 2" filter thread) | |
| Standard package items | an 180pro OTA, an instruction manual | |
