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QHY550P M /P

QHY550P M /P


The QHY550P ColdMOS Monochrome Polarized Camera is a specialized imaging device designed for capturing polarized light in the field of astronomy and scientific research. The QHY550M ColdMOS Monochrome  Camera is a specialized imaging device designed for astronomy and scientific research. Let’s delve into its features:

  1. Sensor and Polarization:

  2. Applications:

    • Many celestial objects emit polarized light, including nebulae. By using the QHY550P, you can explore these objects from a fresh perspective.
    • In solar imaging, phenomena like the corona and sunspots benefit from polarization.
    • The polarization sensor is created during semiconductor fabrication, ensuring excellent uniformity, mass production, and durability. An anti-reflection layer covers the sensor to prevent flare and ghosting1.
  3. Technical Specifications:

  4. Cooling System:

  5. Anti-Dew Technology:

  6. Optical Window:

In summary, the QHY550P ColdMOS Monochrome Polarized Camera combines advanced features, precise cooling, and anti-dew technology to enhance your astronomical and scientific imaging endeavors

You can find more information about this camera on the QHYCCD website.


Global Shutter

Unlike the rolling shutter technology used in most CMOS cameras, a global shutter guarantees that the exposure time for the whole image area is uniform, beginning and ending at exactly the same time. This type of shutter is ideal for high precision applications. For high-speed moving object and the atmospheric agitation, the global shutter can generate undistorted imaging and realizes high picture quality.

Model QHY550M (Monochrome Version)
QHY550C (Color Version)
QHY550P (Four Direction Monochrome Polarize Version)
COMS Sensor SONY IMX250 Pregius Global Shutter CMOS Sensor
Pixel Size 3.45um*3.45um
Effective Pixel Area 2464 × 2056
Effective Pixels 5.0 mega pixel
Effective Image Area 8.50mm * 7.09mm
Fullwell 11000e
AD Sample Depth 12BIT (output as 16bit or 8bit format)
Sensor Size Typical 2/3inch
Full Frame Rate and ROI Frame Rate 2458*2056 68FPS@8BIT
2458*2056 34FPS@12BITROI 1080lines   (eg.2458*1080,1920*1080)126FPS@8BIT
ROI 480lines       (eg.2458*480, 640*480)   270FPS@8BIT
ROI 100lines       (eg.2458*100,100*100)    940FPS@8BIT*Note QHYCCD has optimized the cmos drive frequency and limit the max frame rate. The CMOS sensor may not work under the maximum frequency to ensure the better noise performance. If you need the customized higher frame rate version, please contact QHYCCD.
Readout Noise 2.0e-2.5e
Dark Current 0.005e/pixel/sec @ -10C
Exposure Time Range 20us-600sec
Anti-Glow Control Yes. Big reduction of the amp-glow of the IMX250 sensor
Shutter Type Electric Global Shutter
Computer Interface USB3.0
Built-in Image Buffer 128MByte DDR2 memory
Non-volatile memory / On camera storage Build-in total 512Kbytes Flash Memory. 100Kbytes user-accessible space
for stellar ROI frames for analysis of exoplanet investigation, occultations, atmospheric seeing measurement, focus, optic analysis etc. Support 100*100 image x 10rames   50*50 image x40frames. 25*25 image x160frames 10*10 image * 1000 frames (total frame numbers is based on 8bit image)
Cooling System Dual Stage TEC cooler about -35C below ambient

(Test temperature +20°)

Anti-Dew Heater Yes
Telescope Interface M42/0.75 or optional C-mount
Optic Window Type AR+AR High Quality Multi-Layer Anti-Reflection Coating (for QHY550M and QHY550P)
IR cut Coating (for QHY550C)
Back Focal Length 18mm (±0.3)
Weigth 460g
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