ZWASI4400

ASI4400

ZWO

Built to capture wide-field images and large deep-sky objects, the full-frame ASI4400MC Pro Cooled Color Astronomy Camera from ZWO delivers a rich 44MP resolution with fast data transfer. Equipped with a Sony IMX366 CMOS sensor, the camera produces barely any amp glow and reduces dark current and thermal noise for a clean image even with very long exposures. Your images reach your computer quickly and smoothly thanks to the USB 3.0 interface with built-in 512MB DDR3 memory buffer. A 14-bit analog-to-digital converter yields a 13-stop dynamic range that captures everything from bright objects to faint shadow details. The camera's 76.4ke full well capacity allows for long exposures and helps prevent overexposure issues.44MP Color Sensor The ASI4400MC Pro uses a full-frame, back-illuminated sensor measuring 36 x 24mm with a 43.3mm diagonal. With 44 megapixels and 4.4 m pixels, it delivers high resolution and light sensitivity in every shot. The full-frame format lets you capture the entire field your optics can deliver no cropping or lost edges for wide-field targets and large deep-sky objects.14-Bit ADC with 13-Stop Dynamic Range The ASI4400MC Pro features a 14-bit analog-to-digital converter (ADC) that delivers a dynamic range of over 13 stops. This wide range allows a single exposure to capture both bright highlights and faint shadow details without clipping. Whether you're imaging bright stars, nebula cores, or the delicate wisps of distant galaxies, more tonal information is preserved for smoother gradients and richer color depth. The result is a natural, well-balanced image straight out of the camera, with plenty of flexibility for post-processing and fine-tuning.USB 3.0 & 512M DDR3 Memory The camera is equipped with a USB 3.0 transmission interface and a built-in 512MB DDR3 cache to ensure stable and secure data transmission. Under long exposure, it effectively avoids frame dropping and greatly reduces the glow effect caused by slow reading speed.Sensor Tilt Adjustment The camera includes three sets of sensor tilt adjustment screws. Each set has a push and a pull screw that let you fine-tune the sensor's alignment with your telescope's optical axis. This adjustment helps correct any slight tilt that can cause stars to appear elongated or out of focus toward the edges of the frame, ensuring sharp, even focus across the entire image.Two-Stage TEC Cooling The sensor can be cooled to 95 F below the ambient temperature, holding down dark current noise.Minimal Amp Glow The camera features ZWO's proprietary Glow Suppression technology, which effectively controls sensor glow and maximizes overall imaging performance. This technology is implemented directly at the hardware level and does not require any software intervention.UV/IR Cut Filter The ASI4400MC Pro is equipped with a UV-IR cut filter mounted in front of the sensor. This protective filter blocks unwanted ultraviolet and infrared light that can cause star bloat and color distortion, allowing only visible wavelengths to reach the sensor. By filtering out these non-visible wavelengths, the camera produces sharper stars, more accurate colors, and overall improved image quality in astrophotography.Anti-Dew Heater A built-in polyimide heater is bonded to the protective window to prevent dew and frost buildup, ensuring clear and reliable imaging throughout the night.Power Supply Required External power supplies are needed for all ASI cooled cameras. ZWO recommends a 12V, 3-5A DC adapter (D5.5x2.1mm, center pole positive) or a lithium battery with 11-14V to power the camera. If the voltage exceeds this range, the camera will activate its automatic protection mechanism.