Astronomy Specialist

ASKAR FMA180 F/4.5 TRIPLET APO LENS

$599.00

Quantity
- +

 

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.

 

Askar FMA180 f/4.5 triplet apochromatic telescope

 

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

 

 Askar FMA180 f/4.5 triplet apochromatic telescope diagram

 

Askar FMA180 f/4.5 triplet apochromatic telescope diagram 2

 

Askar FMA180 f/4.5 triplet apochromatic telescope spot diagram

 

 

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

 

Askar FMA180 f/4.5 triplet apochromatic telescope connection diagram

 

Askar FMA180 f/4.5 triplet apochromatic telescope dimensions

Askar FMA180 f/4.5 triplet apochromatic telescope dimensions 2

 

  • 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

 

Askar FMA180 f/4.5 triplet apochromatic telescope included items

 

Customer Reviews

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S
Simon

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.

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