ASKAR FMA180 F/4.5 TRIPLET APO LENS
The Askar FMA180 F/4.5 is an extremely versatile, lightweight triplet apochromatic refractor with two ED (extra-low dispersion) lenses. The FMA180, when combined with the included triplet reducer, is a very capable super wide-field astrograph with minimal chromatic aberration and distortion. As well as its superb imaging capability, it can be configured as a visual telescope, finder or guide scope.
Features
- Can be used as either a 220mm f/5.5 visual telescope or a highly corrected 180mm f/4.5 astrograph when combined with the included reducer/corrector.
- Compact and exceptionally light, at 145mm long and 395 grams.
- Includes all adapters necessary for use as a photographic, visual, finderscope and guidescope.
- Comes with finder mounting rings, ARCA-SWISS mounting plate and Vixen-style dovetail base for a wide range of configuration possibilities.
- Extremely portable and versatile construction, ideal for grab and go astrophotography with a star tracker.
- Highly precise helical focuser with 30mm of travel
| Optical design |
Air-spaced apochromatic triplet with two ED elements |
|
Objective diameter |
40 mm |
|
Focal length |
220 mm (180 mm with reducer) |
|
Focal ratio |
f/5.5 (f/4.5 with reducer) |
|
Mount attachment |
Arca-Swiss style tripod foot with 3/8" and 1/4" threads, Vixen-style dovetail base |
|
Focuser |
Helical focuser |
|
Camera connection |
M42 x 0.75, 1.25" adapter |
|
Backfocus |
55 mm, 99 mm without extension tube |
|
Weight |
395 g |
|
Length |
145 mm with reducer |
|
SKU |
AS-180 |
- FMA180 telescope
- FMA180 reducer with extension tube
- Pair of tube rings with adjustment screws
- Finderscope bracket
- Two extension tubes - 55mm & 75mm
- 1.25" adapter
- Allen wrench
- Manual
Have only had the chance to use the FMA180 once so far due to clouds/moon phase, but pretty impressed - build quality is excellent, as for imaging, see pic attached. 1/2 hr integration on Carina from my bortle 8 front yard taken with my Canon M50 & L enhance filter.
