ASKAR FMA135 fi 30 mm / 135 mm f/4,5 APO astrograph / telephoto lens / guider / travel scope (SKU: FMA135)
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Our company is involved in preparing official permits from the Polish Ministry of Development and Technology, which allows us to export all dual-use drones, optics, and portable radiophones without VAT on the Polish side / and without VAT on the Ukrainian side.

ASKAR FMA135 fi 30 mm / 135 mm f/4,5 APO astrograph / telephoto lens / guider / travel scope (SKU: FMA135)

The Askar FMA 135 astrograph/telephoto lens is a multi-faceted instrument comparable in quality to the esteemed Askar FMA180 model. It offers a 135mm focal length and incorporates an apochromatic triplet with a single element made from reduced dispersion (ED) glass. This innovative optical system, coupled with a three-element flattener, ensures superior light transmission and a flat field. The FMA 135 is meticulously designed to meet the demands of both regular and full-frame cameras, making it an ideal choice for astrophotographers. In addition to astrophotography, it can also be used as a telephoto lens or as a guide scope for your travel adventures. With its SKU FMA135, it’s a high-performing addition to any toolkit.
$361.98
Tax included

294.29 $ net price (non-EU countries)

100% secure payments

Anatolii Livashevskyi
Product Manager
Українська / Polski
+48721808900
+48721808900
Telegram +48721808900
[email protected]

Olesia Ushakova
Product Manager
Українська / Polski
+48695005004
+48695005004
Telegram +48695005004
[email protected]

Description

The Askar FMA 135 is a highly versatile instrument that is on par with the esteemed Askar FMA180 model, boasting a focal length of 135 mm. This refractor features an advanced optical system, comprising an apochromatic triplet with a single element crafted from reduced dispersion (ED) glass. Accompanied by a three-element flattener, it delivers exceptional light transmission and a flat field, making it the perfect tool for astrophotography with full-frame or regular cameras.

Equipped with a Vixen foot, the Askar FMA 135 can effortlessly serve as a top-notch guider or a telescope for visual observations with the use of a 1.25" eyepiece adapter.

Key Features of the Askar FMA135 f/4.5 APO Lens:

  • A versatile apochromatic astrophotographic lens suitable for guiding and direct visual observations.
  • ED glass lens effectively reduces chromatic aberrations.
  • Universal mounting compatibility with the M42x0.75 thread.
  • Built-in adapter for convenient mounting of 1.25" filters on the front part of the lens.

Technical Specifications:

  • Optical design: Apochromatic fixed focal length lens.
  • Objective lens system: Triplet with an air gap.
  • Number of flattener lenses: Three.
  • Flattener times/scale: 1:1.
  • Number of ED glass lenses: One.
  • Coating type: Full multilayer coating (FMC).
  • Front lens diameter (aperture): 30 mm.
  • Focal length without reducer: 135 mm.
  • Focal length with reducer: 135 mm.
  • Without reducer, aperture ratio: f/4.5.
  • With reducer, aperture ratio: f/4.5.
  • Additional filter mounting: Yes, 1.25" filter mounted on the front part.
  • Focusing: Manual.
  • Back focus: 55 mm.
  • Optical tube mount: Vixen.
  • Camera/camcorder mount: M42x0.75 thread.
  • Eyepiece adapter: 1.25".
  • Length (with flattener): 113 mm.
  • Diameter: 40 mm.
  • Weight: 240 g.

Included Components:

  • Askar FMA135 f/4.5 APO lens.
  • 1.25" eyepiece adapter.
  • Fixing screws (5 pieces).
  • Fastening ring.
  • Documentation.

Warranty:

Enjoy peace of mind with a 24-month warranty accompanying the Askar FMA 135.

Data sheet

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Official permits of the Ministry of Development and Technology

Our company is involved in preparing official permits from the Polish Ministry of Development and Technology, which allows us to export all dual-use drones, optics, and portable radiophones without VAT on the Polish side / and without VAT on the Ukrainian side.