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FMA180 40mm F4.5 - ASKAR


Askar FMA180 is a small 40mm lens open to F4.5. Perfect for use as a photo lens or in guide glasses

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  • Multi use, photo or guide telescope
  • 40 mm opening
  • ED triplet lens with air spacing for beautiful colors
  • 180 mm photographic focal length (with corrector) - Focal F / 4.5 ratio
  • Filter filter 2 "in front of the objective for nebulous filters
  • Large focal length for 220 mm observation
  • Full -format compatible
  • Precise helical focus on the objective for a precise concentration - with locking mechanism
  • Connection of the T2 camera with a 55 mm working distance (when used as a telephoto lens)
  • Weight only 395 grams
  • can easily be attached to the telescope instead of the researcher

A little ATKAR FMA180 for everything

Askar FMA180 lens objective includes two pieces of ED glass (extra-faible dispersion), providing an excellent correction of chromatic aberration, which lays the foundations for high-quality astrophotography and observation.

Reducer included

The Askar FMA180 reducer also adopts the design of the APO triplet, offering a clear image in addition with the lens. The reducer has a great capacity to improve the quality of the sky imagery, allowing to get rid of all aberration defects.

The FMA180 ASKAR originally has an opening of 40 mm, a focal distance of 220 mm and a focal ratio of F / 5.5. When equipped with the F4.5 reducer specially designed, the FMA180 will be a professional astrographer 180 mm of focal length for an opening at F / 4.5.

Small but strong

In the field of amateur astronomy, it is rare to find an astrographer with a focal distance less than 200 mm, which is conventionally a specialty of ordinary objectives. But ordinary cameras are not specialized for astrophotography, so that the images taken by them may not always satisfy.

Askar FMA180, a revolutionary optical device, and will give you clear and stuck images.

The FMA180 is compact with a main tube length of only 145 mm and a weight of 395 g. In addition, it can also function as a quality researcher or guide.

The support can be separated into 2 to allow use with sparkle tail or in guide telescope via researcher support.


  •      Opening: 40 mm
  •      Objective: APO Triplet with air spacing
  •      Large focal lens: 220 mm without corrector
  •      Reducer: 3 -elements reducer and photography corrector
  •      Photographic focal ratio: F / 4.5 with corrector
  •      Length: 145 mm
  •      Weight: 395 grams
  •      Camera connection: thread M42x0.75
  •      Working distance: 55 mm thread M42
  •      Visual connection: 1.25 "
  •      Filter thread M48X0.75

Elements delivered:

  •      Askar 180 mm Triplet lens in the tube
  •      Helicoidal focus
  •      Corrector and reducer
  •      2x extension tube (M42x0.75 - T2 thread)
  •      1,25 "adapter
  •      Adjustable tube rings with universal adapter plate
  •      Multifunctional adapter for the tripod of the shoe and photo and the arca-swiss style frame
Product Details

Data sheet

4.5 (photo)
4.5 (photo)
Rapport F/D
4.5 (photo)
Filetage M48

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FMA180 40mm F4.5 - ASKAR

Askar FMA180 is a small 40mm lens open to F4.5. Perfect for use as a photo lens or in guide glasses

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