Product Questions and Answers
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Details
QHY4040 FSI / BSI Cooled Scientific Cameras (CMT, CMN)
Large Area Sensor, 36.9 x 36.9mm 4K x 4K
The QHY4040 models are scientific cooled CMOS cameras with GSENSE4040 sCMOS sensor. It has a 36.9mm x 36.9mm square sensor with 9.0um pixels in a 4k x 4k array. It has a 36.9*36.9mm big image area. 9um pixel size.
In addition to the standard USB 3.0 interface, the two PRO versions each have 2 x 10 GB Ethernet fiber optic interfaces for faster data transfer (or for longer distances between PC and telescope). For the use of the GB interfaces, a QHY PCIE Kit (#1931116 , € 3050,-) is required optionally and separately at extra charge. Some users may own two or more ethernet compatible cameras but only do operate one camera at a time. In this case just one grabber card needs to be ordered. But for multiple cameras, each to operate with 2X10GB simultaneously, then the same number of grabber cards are needed.
Multiple Pixel Clocks, 20 FPS at Full Resolution
The QHY4040 has a USB3.0 high-speed interface with up to 5GB of bandwidth. The camera achieves 1:1 video output at 20 frames per second (8-bit) with 4096 x 4096 resolution or 8FPS in low noise 12-bit mode. As different clock rates affect read noise performance, the QHY4040 supports five readout clocks and 8FPS, 12FPS, 16FPS, 18FPS and 20FPS frame rates.The QHY4040PRO (available in either FSI or BSI versions) supports selectable dual 12bit channel output (high gain, or low gain), and also supports the on-camera dual 12bit to 16bit data combination process.
Front-Side-Illuminated, 74% QE, 86dB Dynamic Range, 3.7e- Read Noise (standard version)
The QHY4040 version with FSI sensor has an ultra-high dynamic range of 86dB and an extremely low readout noise of 3.7e-. This makes the camera exceptional for astronomical imaging, medical imaging, life sciences, fluorescence detection, trace sciences.PRO version: available with Front-Side Illuminated & Back-Side Illuninated sensors
QHY4040/PRO has both the FSI version and BSI version. FSI version has a peak QE of 74%, 70ke full-well (at the lowest gain), 4e readout noise (at the highest gain). BSI version has a peak QE of 90%, 39ke full-well (at the lowest gain), 2.3e readout noise(at the highest gain), and a wide spectrum from UV to Near IR.Dual Stage Regulated TE Coolling -35C
The QHY4040 has 2-stage thermoelectric cooling that reduces the sensor temperature to -35 °C below ambient. TE cooling significantly reduces dark current and produces cleaner, lower noise images over long exposures. The PRO versions are also available with liquid cooling for an additional charge. It lowers the sensor temperature down to - 40 degrees below ambient temperature.Astronomical Imaging, Biological Imaging, X-Ray Imaging, Dynamic DR
The high sensitivity, large field of view, 9um pixel size and large dynamic range are all ideal for astronomical imaging with long telescope focal lengths. . The large 36.9mm x 36.9mm sensor with high resolution, high quality Image output also makes the QHY4040 ideal for Biological imaging. For dynamic medical x-ray DR imaging the QHY4040 sensor size matches most industry-standard DR lenses and the high frame rate and low readout noise performance is ideal for X-ray imaging.The QHY4040 is available in two version:
QHY4040 FSI QHY4040 PRO FSI QHY4040 PRO BSI CMOS Sensor Gpixel Gense4040 FSI / BSI version Pixel Size 9.0um x 9.0um CMOS Chamber Optic window glass AR+AR multiple layer coating anti-reflection glass Sensor Size 36.9mm*36.9mm Effective Pixel Area 4096 x 4096 Effective Pixels 16.8 Megapixels Full Well Only support Low Gain Channel 26 ke- Low Gain Channel 26ke-, High Gain >70 ke- 36ke- AD Sample Depth Dual 12 bit ADC (only output High Gain channel)
Dual 12 Bit ADC, 1. Dual Channel Output Together Mode. 2. Single Channel Mode (High Gain Channel) Dual 12bit ADC, 1. Dual Channel Output Together Mode. 2. Single Channel Mode (High Gain Channel and Low Gain Channel Seletable), 3. Dual 12bit Combine to 16BIT Image mode. Computer Interface USB3.0 ONLY USB 3.0 + 2x10Gbps fiber*
*For the use of the GB interfaces, a QHY PCIE Kit (#1931116 , € 3050,-) is required optionally and separately at extra cost. If several cameras are to be operated in parallel via the fiber optic interface, the same number of PCIE boards is required. An interface board is NOT required if the camera is only operated via the standard USB 3.0 port.
USB 3.0 + 2x10Gbps fiber*
*For the use of the GB interfaces, a QHY PCIE Kit (#1931116 , € 3050,-) is required optionally and separately at extra cost. If several cameras are to be operated in parallel via the fiber optic interface, the same number of PCIE boards is required. An interface board is NOT required if the camera is only operated via the standard USB 3.0 port.
Built-in Image Buffer QHY4040
128MB DDR2 Memory2GByte (16Gbit) DDR3 Memory 2GByte (16Gbit) DDR3 Memory Full Frame Rate USB3.0 Mode
20FPS@4096*4096 8bit (Clock Speed 4)
18FPS@4096*4096 8bit (Clock Speed 3)
16FPS@4096*4096 8bit (Clock Speed 2)
12FPS@4096*4096 8bit (Clock Speed 1)
8FPS@4096*4096 8bit (Clock Speed 0)
8FPS@4096*4096 12bit (Clock Speed 0)USB 3.0 Mode
20FPS@4096*4096 8bit
13FPS@4096*4096 8bit
10FPS@4096*4096 16bit and 8bit
8FPS@4096*4096 16bit and 8bit2x10Gbps Fiber Mode ( requires a QHY PCIE Kit (#1931116 , € 3050,-) ):
24FPS@4096*4096 16bit
20FPS@4096*4096 16bit
13FPS@4096*4096 16bit
10FPS@4096*4096 16bit
8FPS@4096*4096 16bitUSB3.0 Mode
20FPS@4096*4096 8bit
13FPS@4096*4096 8bit10FPS@4096*4096 16bit and 8bit8FPS@4096*4096 16bit and 8bit2x10Gbps Fiber Mode ( requires a QHY PCIE Kit (#1931116 , € 3050,-) ):
24FPS@4096*4096 16bit
20FPS@4096*4096 16bit
13FPS@4096*4096 16bit
10FPS@4096*4096 16bit
8FPS@4096*4096 16bitReadout Noise FSI version
Typical 4e- @ Gain31 (16.5x）FSI version
Typical 4e- @ Gain31 (16.5x）BSI version
Typical 2.3e- @Maxium Analog GainDark Current FSI version
0.05e/pixel/sec @ -15CFSI version
0.05e/pixel/sec @ -15CBSI version
TBDExposure Time Range 20us – 600sec
Shutter Type Electric Rolling Shutter Exposure Ending Hardware Pulse Output Optional TrigOut and Shutter Measure waveform
GPIO Four High Speed FPGA Controlled GPIO . Can be used for high precise GPS timestamp socket. Or the Electric Shutter on/off waveform output for GPS Card. Or Multiple Camera Synchronized Port and so on. Cooling System Dual Stage TE Cooler（-35C below ambient）
The QHY4040 water-cooled customized version has a maximum temperature difference of -40 degrees in continuous mode and single frame mode with an exposure time greater than 1 second.Humidity Sensor No QHY4040PRO has the humidity Sensor in CMOS chamber QHY4040PRO has the humidity Sensor in CMOS chamber Anti-Dew Heater Yes Telescope Interface M54/0.75 female thread on the fast installer/center adjust ring Back Focal Length 17mm（±0.2） Weigth 785g 1.05kg 1.05kg Further detail information can be found on the original webpage of QHYCCD
If you have any further questions, please send us an email to kontakt (at) baader-planetarium.de.
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