ZWO ASI585MC Pro Color Astronomy Camera – A Game-Changer for Deep-Sky and Planetary Imaging

The ZWO ASI585MC Pro represents the next evolution in astrophotography cameras, combining cutting-edge Sony STARVIS 2 sensor technology, advanced cooling, and zero amp glow performance to deliver some of the cleanest, highest-resolution images available in its class. Whether you’re a dedicated deep-sky astrophotographer, a planetary imaging enthusiast, or a newcomer upgrading from a DSLR or an uncooled CMOS camera, the ASI585MC Pro provides exceptional performance with minimal noise and maximum detail.

Advanced Sony IMX585 Sensor – Unmatched Low-Light Performance

The ASI585MC Pro is equipped with the powerful Sony IMX585 1/1.2” CMOS sensor, which takes advantage of back-illuminated (BSI) technology to dramatically increase light sensitivity and reduce noise.

Unlike traditional front-illuminated sensors, back-illuminated designs relocate the sensor’s circuitry to the rear, allowing more light to reach the photodiodes. The result is significantly improved quantum efficiency (QE) and an expanded full well capacity of 47,000e-, ensuring better signal retention and reduced overexposure in bright areas such as lunar craters, planetary surfaces, and star clusters.

Additionally, the high pixel count of 8.3 megapixels (3840 x 2160 resolution) allows for stunningly detailed images while maintaining an optimal 3.76μm pixel size—a perfect balance between resolution and light-gathering ability.

Why the IMX585 Sensor Matters for Astrophotography

• Higher Quantum Efficiency (QE) & Lower Read Noise: Ensures that even faint celestial objects appear brighter and more detailed.
• No Low-Pass Filter Needed: Delivers sharper images with more accurate color rendition.
• Sony STARVIS 2 Technology: Optimized for ultra-low-light conditions, making it an ideal sensor for both deep-sky and planetary imaging.
• Zero Amp Glow: A common issue in older uncooled cameras, amp glow can ruin long-exposure shots. The ASI585MC Pro eliminates this entirely, even in the longest exposures.
• Expanded Dynamic Range (Up to 12 Stops): Preserves highlights and shadow details, critical for imaging high-contrast celestial objects.

Deep-Sky Imaging with Ultra-Low Noise and Powerful Cooling

For astrophotographers pushing the limits of long-exposure imaging, cooling performance is essential. The ASI585MC Pro features a two-stage TEC (thermoelectric) cooling system, capable of reducing sensor temperatures by up to 35°C below ambient. This level of cooling is crucial for eliminating thermal noise, a significant challenge in long-exposure deep-sky astrophotography.

By keeping the sensor at a stable, ultra-low temperature, this camera allows astrophotographers to take longer exposures (several minutes per frame) without excessive noise buildup. This means cleaner, more detailed images of faint galaxies, nebulae, and star clusters.

• Superb Noise Reduction: Thanks to ultra-low read noise (down to 0.8e-) and efficient cooling, you get exceptionally clean data.
• Ideal for Long-Exposure Imaging: Capture deep-sky objects with high sensitivity and minimal thermal interference.
• Consistent Temperature Stability: TEC cooling ensures uniform performance throughout the imaging session, regardless of ambient temperature fluctuations.

High-Speed Planetary Imaging – Capture the Finest Details

The ASI585MC Pro is not just a deep-sky powerhouse—it’s also an exceptional planetary and lunar camera. With support for high frame rates up to 46 fps (frames per second) at full resolution, this camera is perfect for lucky imaging, a technique that involves taking thousands of short-exposure frames and stacking the best ones to achieve ultra-sharp images of planets.

Key advantages for planetary imaging include:

• Fast Readout Speed: Reduces atmospheric distortion by capturing more frames per second.
• High Bit-Depth ADC (Analog to Digital Converter): Preserves finer gradations of color and detail.
• Enhanced Near-Infrared Sensitivity: Excellent for imaging planets like Jupiter and Saturn, where IR filters can bring out additional features.
• USB 3.0 Data Transfer: Ensures rapid file transfer speeds, minimizing lag between captures.

Versatility for Electronically-Assisted Astronomy (EAA) and Live Stacking

For amateur astronomers interested in electronically-assisted astronomy (EAA) or real-time deep-sky imaging, the ASI585MC Pro is a fantastic choice.

• Live Stacking: Combine multiple short exposures in real-time to reveal details that would be invisible through an eyepiece.
• High Sensitivity in Low-Light Conditions: See more celestial objects without the need for extensive post-processing.
• Zero Amp Glow: Provides cleaner, artifact-free images, ideal for real-time viewing applications.

Seamless Integration with Your Setup

ZWO designed the ASI585MC Pro with versatility and ease of use in mind. The camera’s standard connections and included adapters make it simple to integrate with a wide range of telescopes and accessories.

• Standard 1.25” & 2” Nosepieces: Compatible with most telescope setups.
• M42 x 0.75 Threading: Standard size for astrophotography accessories.
• Compact & Lightweight Design: Won’t add unnecessary bulk to your imaging train.
• USB 3.0 & ST4 Guider Port: Allows for fast data transfer and guiding support.

Comparison: ASI585MC Pro vs. Other ZWO Cameras

The ASI585MC Pro offers an ideal balance of resolution, sensitivity, and frame rate, making it one of the most versatile cameras in ZWO’s lineup.

Final Thoughts – Why Choose the ASI585MC Pro?

Whether you’re a serious deep-sky imager, a planetary photographer, or an EAA enthusiast, the ASI585MC Pro delivers exceptional image quality with industry-leading features. Its cooled sensor, high dynamic range, and zero amp glow performance make it a perfect upgrade from DSLR cameras and uncooled CMOS models.