QHY 5III585C Planetary Camera and Guider

Brand: QHY

SKU : QH-QHY5III585C

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  • QHY5III585C is a new generation of QHY5III V2 series planetary guide camera, which is an enhanced version of its predecessor QHY5III485C
  • It has a high sensitivity in the near infrared similar to that of 5III462C, while the dynamic range performance has been greatly improved.
  • The product comes with filters including an IR850nm filter

Product Details

  • QHY5III585C is a new generation of QHY5III V2 series planetary guide camera, which is an enhanced version of its predecessor QHY5III485C. It has a high sensitivity in the near infrared similar to that of 5III462C, while the dynamic range performance has been greatly improved. It has a 1/1.2-inch large sensor and excellent characteristics of zero glow.

    In this latest generation of sensors, the photodiode portion of the pixel well is physically deeper than in previous sensors, allowing photons of longer wavelengths to penetrate deeper into the substrate. This dramatically increases the sensor’s sensitivity to red and near-infrared (NIR) light. The sensor displays almost equal peak sensitivity to NIR light as it does to light in the visible spectrum.

    One benefit of the back-illuminated CMOS structure is improved full well capacity. In a typical front-illuminated sensor, photons from the target entering the photosensitive layer of the sensor must first pass through the metal wiring that is embedded just above the photosensitive layer. The wiring structure reflects some of the photons and reduces the efficiency of the sensor.

    In the back- illuminated sensor the light is allowed to enter the photosensitive surface from the reverse side. In this case the sensor’s embedded wiring structure is below the photosensitive layer. As a result, more incoming photons strike the photosensitive layer and more electrons are generated and captured in the pixel well. This ratio of photon to electron production is called quantum efficiency. The higher the quantum efficiency the more efficient the sensor is at converting photons to electrons and hence the more sensitive the sensor is to capturing an image of something dim.

    The IMX585 is a Sony Starvis II processor that enables high sensitivity and high dynamic range (HDR), resulting in a dynamic range of 88 dB, approximately eight times that of the previous generation IMX485 image sensor in a single exposure. It also improves sensitivity in the near-infrared range by approximately 1.7 times* compared to the IMX485.

    The QHY5III (Ver. 2) series planetary and guiding cameras are all equipped with a 512MB DDR3 image buffer which can effectively reduce the pressure on computer transmission, a great help for planetary photography which often requires writing a large amount of data in a short period of time. Some deep-sky astrophotography cameras on the market today only have 256MB, for example.

    In comparison, the 512MB DDR3 memory of the new 5III (Ver. 2) series cameras represents a significant upgrade.

    QHY5III (Ver. 2) series cameras have adopted a new front-end design with better compatibility. The new front end supports 1.25″ interface of telescopes and is also compatible with CS-port lenses and C-port lenses, and can shoot with C/CS-port lenses with filters attached.

    A 1.25″ framed filter can be fitted with the front end, and a frameless filter can be fitted on the front part of the upper CMOS. The size of the filter glass that is compatible here varies depending on the size of the sensor, but is basically a standard lab filter specification. Compared to the more expensive astronomical filters, lab filters tend to be less expensive and have a wider variety of bands, allowing you to develop more uses and applications for them.

    The new QHY5III (Ver.2) series cameras all use the USB3.2 Gen1 Type-C interface. Compared to the USB3.0 Type-B interface used in the previous generation, the Type-C interface has a longer life and is more flexible.

    Tips: It is recommended to use the official standard Type-C data cable of QHYCCD. As the market is flooded with a large number of poor-quality Type-C cables, casual use may lead to the camera malfunctioning. If you use your own spare cable, please make sure it is a high-quality cable.

    The custom interfaces of the previous generation of planetary cameras and guiders has been replaced in the QHY5III (Ver.2) cameras with a more universal ST-4 compatible guiding interface. Now, even if the guiding cable is lost or damaged, you will be able to easily get a replacement on the market at a low cost.

    The new QHY5III (Ver.2) series of cameras is equipped with a status indicator at the back of the camera. If the camera experiences an abnormal status, the multi-colored indicator light will help to determine the situation with different colors signifying different conditions. During normal operation this indicator light is off, so there is no worry about light contaminating the image.

  • specifications

    ADC12 bit
    Back Focus17mm
    Color or MonoColor
    Guide PortST4
    Max Frame Rate96.5fps
    Mega Pixels8.4 MP
    Pixel Array3856x2180
    Pixel Size2.9 microns
    Sensor TypeCMOS
    SensorSony IMX585 BSI
    Shutter TypeRolling Shutter
    Weight0.198 lb
  • included items

    • QHY 5III585C Planetary Camera and Guider

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