ZWO ASI585MM Air

ZWO ASI585MM Air: Cooled monochrome camera with built-in wireless control

Visit ZWO ASI585MM Air is a compact, cooled monochrome astronomical camera that combines in a single housing a high-sensitivity sensor, a control unit, an internal processing system, and wireless communication capabilities. Part of ZWO's Air series, it was designed to simplify astrophotography setups by allowing the camera to act directly as a full-fledged control center.

Based on a state-of-the-art CMOS sensor STARVIS 2, the ASI585MM Air combines excellent light sensitivity with a very good signal-to-noise ratio. Its monochrome design, which lacks a color filter array, allows for full utilization of the light received by each pixel and makes it a particularly attractive choice for deep-sky imaging, especially with LRGB or narrowband filters.

A high-sensitivity STARVIS 2 monochrome sensor

The ASI585MM Air features a CMOS sensor STARVIS 2 Designed to offer high sensitivity and excellent image quality. In its monochrome version, the sensor does not have a Bayer filter array; therefore, each pixel can directly capture light from the observed object. This architecture optimizes the use of available photons and is particularly well-suited for astrophotographers seeking maximum detail and sensitivity.

The maximum quantum efficiency is approximately 91 %, which allows the sensor to efficiently convert the light it receives into a usable signal. This feature is particularly useful for photographing faint deep-sky objects, where every photon counts.

The protective glass in front of the sensor also features a anti-reflective AR coating. This helps minimize unwanted reflections while ensuring good light transmission to the sensor. The camera also features a wide dynamic range, which allows it to better preserve details in both bright areas and the faintest details.

TEC cooling for long exposures

For deep-sky imaging, controlling thermal noise is essential. The ZWO ASI585MM Air For this reason, it includes a cooling system Two-tier TEC. This generally helps lower the temperature of the sensor 30 to 35 °C below room temperature.

The decrease in temperature significantly reduces the dark current generated by the sensor. As a result, the recorded data remains cleaner during extended exposures, even with exposure times of several minutes. Cooling also offers an advantage when capturing calibration images, since the sensor temperature can be maintained under more consistent conditions.

The Read noise can be as low as approximately 0.7 e⁻ RMS, depending on the gain setting. This low value effectively preserves weak signals and helps improve the quality of the images obtained under appropriate acquisition conditions.

A truly integrated control center

The ASI585MM Air’s unique features aren’t limited to its sensor. Like the other models in the Air series, it incorporates electronics that enable various data processing and management operations to be performed directly. It can therefore handle functions such as real-time stacking, image storage, and certain basic image settings, including brightness and contrast.

This design reduces the amount of equipment needed around the telescope. The camera can thus serve as the heart of a modern astrophotography setup, centralizing several functions that are typically distributed among different devices.

256 GB of internal storage

The ASI585MM Air features a large 256 GB of built-in eMMC storage. This feature allows you to save captured images directly without always needing a computer or additional storage device.

USB ports also allow you to connect external storage devices with capacities of up to 1 TB. This feature is particularly useful for long acquisition sessions or for storing large numbers of images without having to transfer the files regularly.

Dual-band Wi-Fi, Bluetooth, and remote control

The camera includes a system Dual-band Wi-Fi (2.4 GHz and 5 GHz) allowing you to establish a stable wireless connection with compatible devices. The Bluetooth is also available to facilitate certain connections and configuration tasks.

The entire system can be controlled from a a smartphone app or compatible PC software. This wireless connectivity provides greater flexibility during installation and helps minimize the number of cables connecting the camera to a nearby computer.

Numerous ports for monitoring the installation

The ASI585MM Air features several interfaces designed to communicate directly with the various components of an astronomical setup. Its USB 2.0 ports, its 12-volt power supply, and its USB-C port In particular, they allow you to connect additional devices and accessories.

Depending on the configuration used, the camera can thus serve as a central hub for connecting and controlling the lens mount, focusing system, or other modules. This approach makes it possible to design a more compact and better-organized system.

Easy integration with your telescope

Thanks to its compact size and design tailored for modern installations, the ZWO ASI585MM Air can be integrated directly into compatible optical trains with an image field of at least APS-C. It does not require an additional control unit to use its main features.

Visit cables and mounting hardware required for integration are included in the package, allowing you to quickly start using the camera with a compatible astrophotography setup.

Visit ZWO ASI585MM Air thus offers a particularly comprehensive approach to modern astrophotography. Its STARVIS 2 monochrome sensor, with a quantum efficiency of up to 91 %, its cooling down to 30–35 °C below ambient temperature, its quiet read noise and its 256 GB eMMC storage make it a high-performance solution for deep-sky astronomy. By adding the Dual-band Wi-Fi, Bluetooth, built-in processing, and a wide range of control options, it serves as a true central processing unit capable of greatly simplifying an astrophotography setup.

Documentation and Compatibility: ZWO official data sheet.