ASA AZ1750 f6 f2

An evolution milestone of high-end telescope systems with 1.75m aperture.

This complete solution represents a fully integrated alt-az observatory system. The AZ1750 1.75m is equipped with quartz optics from ASA. This guarantees diffraction-limited performance and best micro-roughness values even under the most perfect Earth-based astronomical seeing conditions. With fast focal ratio, the design results in less obstruction, higher contrast, and a more compact system. The size and cost of your dome infrastructure is reduced.
1750mm f2/f6 Ritchey-Chrétien Nasmyth design is equipped with absolute encoder secondary mirror focusing unit and configurable with up to 4 Nasmyth ports.

FROM $ 2,719,000.- net

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ASA AZ1750 f6 f2An evolution milestone of high-end telescope systems with 1.75m aperture.

Main Facts

Optical design
Ritchey-Chrétien RC
Linear central obstruction
Focus position
Nasmyth 2 as standard, 4 as option
Focal ratio system
Clear Aperture / Focal Ratio Primary Mirror
1750mm / f2
Image field
150mm (0.82 degrees)
Mirror material
Surface quality
>94 strehl
1nm RMS / <0.7nm Ra
Al+SiO2 >91%
Back Focus from flange
Weight tube
6500kg (14330lbs)
ASA API (application programming interface) available autumn 2024 ASA Software(Autoslew, Sequence-windows based, ACC) with ASCOM-Alpaca
Pointing Accuracy (20° to 85°)
<8” RMS with pointing model
Tracking Accuracy (20° to 85°)
<0,25” RMS within 5 minutes tracking time over 5 min 0,05” RMS/min
System Natural Frequency
10 Hz or greater

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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05 Direct Drive

No gears NO belts. Precise closed loop control.

We developed our own direct drive controller and motor system. No gears or belts are needed, there is no transmission no periodic error or backlash.

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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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