ASA H400 f2.4

Lightweight and compact.

The H400 f2.4 astrograph is the ideal platform for widefield imaging and all-sky surveys. The H400 features a 5-inch corrector and motorized focusing with absolute encoders. The H400 ensures precise focus and high-resolution data acquisition of the night sky – in the shortest possible time! Fits perfectly with the ASA Direct Drive mounts.

The H400 was selected as the instrument of choice for the Super Wasp II Exo-planet program, a consortium of universities and space agencies including: Geneva University, Leicester University, Queens University Belfast, the University of Warwick, the German Aerospace Center DLR, and the GOTO project.

This very fast 400mm telescope is also available as a package in combination with a ASA DDM100 Direct Drive mount!

FROM $ 53,000.- net

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ASA H400 f2.4Lightweight and compact.

Main Facts

Optical design
Linear central obstruction
Focal length
Focal ratio system
Clear Aperture / Focal Ratio Primary Mirror
400mm (15.7 inch) / f3
Image field
70mm (4.2 degrees)
Mirror material
Fused silica
Surface quality
>94 strehl
1nm RMS / <0.7nm Ra
Al+SiO2 >96 %
Back Focus from flange
Weight tube
57kg / 126lbs

RC & CDK Comparison

In our comparison, we compare our corrected RC to a CDK (corrected Dall-Kirkham):

1. The ASA RC primary mirrors are faster than a CDK and therefore the OTA is significantly shorter.
2. The CDK design requires a larger secondary for a given aperture (RC offers higher contrast).
3. ASA’s design is more versatile than the CDK where the corrective optics must be used.

Technical Details

01 Electronics

Our closed loop direct drive systems, sensor technology and observatory safety modules play a major role in achieving optimum results. All moving accessory components are equipped with high-resolution encoders and closed-loop feedback systems. We provide event timer modules, and customer updatable firmware.

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02 Optic

Only the best for your telescope!

We believe that the most important part in producing optics is the testing. So ASA decided that we invest in the best test equipment available, remove any measuring error as good as possible and use real values in our specifications.

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03 Technology

Our mounts are manufactured with the lastest CNC technology.

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04 Software

Platform independent control software.

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ASA Services

Services for your telescope. Competitively priced for value with a complete ASA telescope and mount package!

ASA Accessories

Accessories for your telescope. Best price for value with a complete ASA telescope and mount package!

ASA In-house production

The competent partner that provides you with the whole package – ASA, guarantees the highest standard! Interferometric metrology, CNC machining, meter class optics, light weight mirrors, telescope systems, ground stations, assembly, factory testing and commissioning, everything is done by ASA itself.

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