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 FRA400 400/5,6 APO fi 72 mm
The Askar FRA400 400/5.6 APO telescope is a member of the highly regarded Askar FRA series, known for their exceptional optical and mechanical benchmarks. Specifically crafted for astrophotography, these tools come equipped with a built-in field corrector for outstanding image quality. The FRA400 400/5.6 APO model, in particular, is considered a premium astrograph. Its superior optic system is a composite of two sets of five lenses, resulting in exquisite precision and detail for your astrological observations. With a lens diameter of 72mm, this device captures a larger amount of light for enhanced clarity. Immerse yourself in the beauty of the stars with the Askar FRA400 400/5.6 APO telescope.
1220 $ net price (non-EU countries)
Anatolii Livashevskyi
Product Manager
/ 
+48721808900
+48721808900
+48721808900
[email protected]
Description
Askar FRA telescopes are a remarkable series of telescopes specially designed for astrophotography, boasting unrivaled optical and mechanical excellence, coupled with a built-in field corrector. Among the models in this series, the FRA400 400/5.6 APO stands out as a top-tier astrograph, featuring a sophisticated optical system comprised of two groups of five lenses.
In order to mitigate the issue of chromatic aberration, the manufacturers have incorporated two lenses made from low-dispersion glass, ensuring superior image quality. Additionally, the application of multilayer anti-reflective coatings on the glass surfaces enhances the overall contrast, resulting in stunning astrophotographs.
The FRA400 400/5.6 APO offers an impressive focal ratio of f/5.6, which can be further increased by employing an optional focal length reducer. This meticulously engineered instrument excels both mechanically, with its robust 3" focuser tube and microfocuser, and optically, with its large illuminated circle that fully covers the frame of cameras equipped with a full-frame sensor.
Key Features of the Askar FRA400 400/5.6 APO Optical Tube:
- Apochromatic quintuplet design with two ED glass elements and a built-in field corrector
- Sturdy 3" focuser tube that ensures stability even with heavy DSLRs, maintaining precise alignment
- Ample diameter of the illuminated circle guarantees full coverage of the full-frame sensor
Technical Specifications:
- Optical system: ED-APO apochromatic quintuplet with air gap
- Number of ED glass elements: 2
- Objective diameter: 72 mm
- Focal length: 400 mm
- Maximum usable magnification: 144x
- Focal ratio: f/5.6
- Resolving power: 1.66"
- Stellar magnitude range: 11.3 mag
- Anti-reflective coating: Full multi-layer coating (FMC)
- Diameter of the illuminated circle: 44 mm
- Built-in field corrector: Yes
- Back focus: 140 mm
- Focuser diameter: 3", reducible to 2" and 1.25"
- Type of focuser: Rack & pinion with 10:1 microfocusing and 360° rotation capability
- Camera or eyepiece adapter: M68x1 - M48x0.75, 63.5 mm long
- Length of optical tube: 317 mm
- Tube diameter: 90 mm
- Tube weight: 2.56 kg
- Weight with accessories: 2.88 kg
Included Accessories:
- Askar FRA400 400/5.6 APO optical tube
- Mounting rings
- Carrying handle
- Vixen-style dovetail plate
- M68/2" eyepiece adapter
- 2"/1.25" reducer
- M68/M48 adapter
- Documentation
Warranty:
The Askar FRA400 400/5.6 APO telescope is backed by a comprehensive 24-month warranty, providing peace of mind for your astrophotography endeavors.
Data sheet
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.