ATR533C (IMX533)

Professional 1" Square Cooled Camera for OSC Deep-Sky Astrophotography

Regular price $769.00
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The ATR533C is a high-performance one-shot color cooled astronomy camera for deep-sky imaging. Featuring Sony’s IMX533 color sensor, 9MP resolution, peak QE above 80%, low read noise, zero amp-glow, and advanced TEC cooling, it captures detailed color images of galaxies, nebulae, and star clusters.

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Compatibility / Requirements

ATR Series cooled cameras require a stable 12V 3A DC power supply. Use the supplied adapter or a lithium-ion battery with a stable 11–14V output.

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Warranty and Support

For setup support, software downloads and warranty service, contact ToupTek Astro support with your order information.

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Full Specifications

  • Sensor: Sony IMX533 Color
  • Resolution: 3008 x 3008 (9MP)
  • Pixel Size: 3.76 μm
  • Full Well: 52ke-
  • ADC: 14bit
  • TEC Cooling: Two-stage TEC, -35/-45°C below ambient

Meet ATR533C: Advanced Square-Sensor Cooled Color Camera for Flexible Deep-Sky Imaging

Explore the beauty of the deep sky with the ToupTek ATR533C. Built around Sony’s back-illuminated IMX533 color sensor, this 9MP cooled astronomy camera combines a square 1-inch imaging format with 3.76 μm pixels, low read noise, and zero amp-glow technology. Its two-stage TEC cooling system supports long-exposure imaging, while the one-shot color design lets you capture natural-color images without a separate LRGB filter workflow. From colorful nebulae to distant galaxies and star clusters, the ATR533C makes dedicated deep-sky imaging more straightforward.

ATR533C cooled astronomy camera

IMX533C Sensor

IMX533 sensor illustration for ATR533C

Square 1-Inch Sensor for Balanced Framing

The Sony IMX533 color sensor features a 3008 × 3008 resolution and a square imaging area. Its format offers a balanced field of view for a variety of deep-sky targets, from compact nebulae to galaxies and star clusters.

3.76 μm Pixels for Detailed Imaging

With 3.76 μm square pixels and a back-illuminated design, the IMX533 combines fine sampling with strong light sensitivity, making it well suited to capturing subtle structures in deep-sky objects.

Peak QE >80% for Efficient Light Capture

The Sony IMX533C sensor offers peak quantum efficiency above 80%, helping capture incoming light efficiently. Combined with its one-shot color design, it enables astrophotographers to record colorful details in nebulae, galaxies, and star clusters without needing to capture separate LRGB channels.

Is ATR533C Right for Your Astronomy Imaging Setup?

Beginners Ready to Explore Cooled Deep-Sky Imaging

If you are moving beyond a DSLR or an uncooled camera, the ATR533C offers a straightforward way to enter dedicated deep-sky astrophotography. Its one-shot color design simplifies image acquisition, while regulated cooling and low read noise support cleaner results during longer exposures.

Deep-Sky Imagers Seeking a Simple, Flexible Workflow

For astrophotographers capturing galaxies, nebulae, and star clusters, the ATR533C combines a square sensor, zero amp-glow design, and two-stage TEC cooling. Capture color data directly and spend less time managing separate filter channels, leaving more room for image processing and refining your results.

Why Choose the ATR533C

ATR series DDR3 memory buffer

512MB DDR3 High-Speed Buffer

High-bandwidth data transmission is secured by an onboard DDR3 buffer, preventing frame dropping, minimizing USB bus traffic bottlenecks, and ensuring ultra-stable image delivery even during fast frame rates or live rendering.

ATR series zero amp-glow technology

Zero Amp-Glow Technology

The ATR series features a specialized zero amp-glow circuit design that maintains a clean, perfectly uniform sensor background across multi-minute long exposures, protecting the faintest details of delicate nebulae.

ATR series anti-condensation heating system

Anti-Condensation Heating

The ATR series optical window features an integrated smart heating system that actively measures ambient temperature and humidity. It automatically applies precise heat to prevent condensation, keeping your optical path crystal clear without introducing disruptive thermal air currents.

ATR series two-stage TEC cooling system

Two-Stage TEC Cooling

Equipped with an integrated heat dissipation structure and a high-efficiency dual-stage Thermoelectric Cooling (TEC) module with a controllable fan. It lowers the sensor temperature to 42°C below ambient, consistently maintaining a stable -5°C to -10°C even in peak summer. This allows for clean, long-exposure tracking up to 1 hour without thermal noise accumulation.

ATR533C Performance Analysis

The Sony IMX533 color sensor uses a Bayer color filter array to record red, green, and blue information. Its spectral response is shaped by the sensor and the camera’s protective window configuration. The ATR533C version equipped with an IR-cut filter has a specified spectral range of 380–690 nm, making it suitable for visible-light color imaging of galaxies, nebulae, and star clusters.

ATR vs. SkyEye Plus

Which Series Do You Need

OSC or Mono

Choose the acquisition workflow that matches your imaging goals

What's in the Box

ATR series camera and included accessories

Back Focus Connection

Frequently Asked Questions

Can I power my guide camera through the camera's built-in USB Hub?

Yes. The ATR series cameras connect with accessories through USB data connection and stable external power, allowing users to build a complete deep-sky imaging workflow with a telescope, mount, guide camera, computer or controller, and power supply.

Does the camera include a 12V power adapter, and is it mandatory for imaging?

Yes. All ToupTek Astro DSO cooled cameras require a regulated 12V 3A DC power supply for imaging. Please use the included factory power adapter or a high-quality lithium-ion battery with a stable 11V–14V output.

Will this camera work with my existing control software?

Yes. The ATR series features robust, industry-standard ASCOM and INDI drivers. It integrates seamlessly with all major open-source and commercial astronomy suites.

How do I achieve the standard 55mm backfocus with my telescope?

Achieving the industry-standard 55mm backfocus is precise and seamless. The optical train is configured via a modular three-stage connection sequence: a 17.5mm front adapter or tilter, a 20mm filter drawer or extension tube, and a 17.5mm Off-Axis Guider (OAG). This combination yields a perfect 55mm stack distance that connects natively to M48, M54, and M68 telescope interfaces, with simple adapter options available for M42 threads and 2-inch ports.

How does the Anti-Dew Technology work?

The ATR series utilizes a multi-layer defense system. The sensor chamber is industrially sealed with dry air to prevent internal frost. Simultaneously, a built-in electronic heating strip warms the protective window to prevent external dew under humid summer nights.