QHYCCD

Like New QHY268PH-C Short Back Focal Length Cooled Camera

SKU: U2408-MS-QHY268PH-C


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  • $1,299.95
  • Regular price $1,999.00

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Not Returnable Please note that used items are not returnable.

This is a QHY268PH-C Short Back Focal Length camera that is in perfect, pristine condition.  It is one year old, and we do not believe that the previous owner ever even unwrapped the accessories in the box, like the cables, the adapters.  We think he only took the camera itself out to take photos of it because we asked him to.  You save big over the brand new price!  

   

    

    

 

QHY QHY268 Photographic CMOS Color Camera - Short Back Focal Length (SBFL) Version

The QHY268C Photographic color camera utilizes the Sony IMX571 back-illuminated sensor with native 16-bit A/D with 65536 levels and 3.76 pixels. Included with the CMOS camera is an electronic shutter that has increased reliability and stability when compared to taking a large amount of images with a mechanical shutter. The CMOS structure of the QHYCCD camera coupled with the back-illuminated sensor means that this camera has an improved full well capacity. Even if the QHY268 CMOS camera is unbinned, the 3.76 pixels have a full well capacity of 51ke-. Not only does this camera already have an impressive 51ke- full well capacity, but QHYCCD has implemented a way to achieve a higher full well capacity with user controlled read modes. There is extended full well readout mode, meaning the QHY268 can achieve a greater full well of approximately 75ke-. This gives a better dynamic range and large variations in magnitude of brightness are less likely to saturate. There are three readout modes, each with their own characteristics.

At on 0.7 electrons of read noise at the highest gain and 6.8 FPS at full resolution readout speed, this QHYCCD CMOS camera module can achieve an SNR > 3 at only four to six photons. This is great for short exposures, narrow band imaging, and other scenarios that are photon limited. QHY has added an innovative suppression technology that can reduce the level of random noise such as the the type of thermal noise that is generated by back-illuminated CMOS sensors and has a value not related to the exposure time.

The QHY 268c color camera is a high resolution, APS-C format camera and is a great match for the Starizona HyperStar systems (not included). It uses a USB3.0 interface that lets you transfer data at 6 frames per second. It also is equipped with a 2-stage TEC cooling system, which helps lower the dark current to only 0.0005e/pixel/sec @ -20C.

The incorporated USB re-connection feature means that this camera's computer connection can be connected and disconnected by turning the 12V power supply on and off. This means you do not have to worry about plugging and unplugging the USB cable, enhancing user control when working from a remote station. All you have to do is control the 12V power supply to control the remote USB connection.

The high pixel count of this CMOS camera means that the memory requirements for temporary and permanent storage is greater. The QHY268c sensor produces about 120MB of data per frame. Additionally, the data bandwidth is increases from 16-bits to 32-bits. To sufficiently meet the memory needs, the QHY268 comes with large-capacity memory of up to 2GB.

The QHY268C camera has been redesigned with the same short back-focal-length (SBFL) design as the QHY268M, which makes the QHY268PH-C more compatible with third-party filter sliders, electric focusers, and more. This changes the back focus specification of the QHY268PH-C to 14.5 mm from the original 24 mm. In addition, this SBFL version includes a B4 adapter kit, which allows Canon or Nikon lenses to be used with only the addition of the Canon or Nikon lens adapters--no other rings or adapters needed!


 

 

SKU Number QHY-QHY268PH-C
Model Number QHY268PH-C
Imaging Camera Series QHY 268
Color, Mono or Polarized Camera Color
Cooled or Uncooled Camera Cooled, Two-Stage TEC
Pixel Size in Microns 3.76
Pixel Array & Resolution 6280 x 4210 (26.4 MP)
Camera Sensor Manufacturer Sony
Sensor Type - CMOS, CCD CMOS
Sensor Size - APS-C, etc. APS-C
Front or Back Illuminated Sensor BSI (Back Illuminated
Sensor Diagonal (mm) 28.3
Includes Guide Sensor? No
Includes Anti-Dew Heater? Yes
Includes Humidity Sensor? No
Built-in Image Buffer? Yes: 1GB DDR3 Memory
Native Bit Depth 16
Full Frame Rate in USB 3.0 Mode 6.8FPS@8BIT, 6FPS @16BIT 2048lines, 13.6FPS @8BIT, 11.5FPS@16BIT 1080 lines, 25.4FPS@8BIT, 19.5FPS@16BIT 768 lines, 35FPS@8BIT, 25FPS@16BIT 480 lines, 50FPS@8BIT, 34FPS@16BIT
Full Well 51ke-, 75ke- or above in extended full well mode
Amp Glow Control Zero Amplifier Glow
Recommended Gain Setting 30 - PH Mode, aka Extended Full Well Mode. 56 @ High Gain Mode
Readout Noise 1.1e- High Gain, 3.5e- Low Gain, 5.3e- to 7.4e- in extended full well mode
Dark Current -20℃ 0.0005e /pixel/sec, -10℃ 0.001e /pixel/sec
Minimum Exposure 30us
Maximum Exposure 3600 seconds
Shutter Electronic Rolling Shutter
Native Back Focus (mm) 14.5 (+/-0.2)
Camera Window AR+AR
Remote Firmware Upgrade Available? Yes
Computer Interface USB3.0
Telescope Interface Thread Type (with proper adapters) M54
Filter Wheel Interface 4Pin QHYCCD CFW Port
Camera Weight (lb.) 1.79
Includes Color Filter Wheel? No
Includes Off-Axis Guider? No
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