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The objective lens features a sextuplet air-spaced APO design and includes two pieces of ED glass, providing excellent correction of chromatic aberration. Specially optimized for astrophotography. Compared to FMA180, FMA180 pro adds a finder base and a 360° rotator. 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.
The FMA180 pro comes with an M48 adapter at the rear end, and the back focus is the standard 55mm. The multifunctional base can not only be used for astrophotography but also be mounted onto other telescopes' finder bases as a finder scope after the Vixen dovetail plate is detached.
In a word, FMA180 pro is a compact astrograph for astrophotography with more integrated functions and a more dedicated design.
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 |
|
| Total Weight (Including tube ring&dovetail plate） |
0.8kg |
|
| Rear-end thread type | M48×0.75 (built-in 2" filter thread) | |
| Standard package items | an 180pro OTA, an instruction manual | |
Gallery
Nicola Bugin&Giovanni Pasquetto | M42 and Horse head nebula | ASKAR FMA180PRO+ZWO ASI294MM/MC
Rosette Nebula | ASKAR FMA180pro+zwo 294mc