Product Details

• Description
• Specifications
• Included Items
• Reviews

• The QHY268 Photographic Cooled Monochrome CMOS Camera has a back-illuminated 26 megapixel APS-C sensor with 16-bit ADC and 3.76 um pixel size.

  Native 16-bit ADC 65536 Levels

  The QHY268M is the CMOS camera with native 16-bit A/D on-chip. The output is real 16-bits with 65536 levels. To compare with the 12-bit and 14-bit ADC. The 16-bit ADC can get high sample resolution, system gain will be less than 1e/ADU. No sample error noise and low noise. 

  Great Full Well: 51ke- at 3.76 um

  One benefit of the back-illuminated CMOS structure is improved full well capacity. This is particularly helpful for sensors with small pixels. Even with unbinned 3.76 um pixels the QHY268M has a full well capacity of 50ke- 

  

  Ultra Low Read Noise

  With a 1 to 4 e read noise, the QHY268M has only one electron of read noise at high gain and 15/fps high readout speed. One electron of read noise means the camera can achieve a SNR>3 at only 4 to 6 photons. This is perfect performance when conditions are photon limited, i.e., short exposures, narrow band imaging, etc., making this large area sensor ideal for sky surveys and time domain astronomy. 

  

  Back-Illuminated: Electric Rolling Shutter and Low Dark Current

  This back-illuminated Scientific CMOS camera has extremely low dark current using SONY's Exmor BSI CMOS technology. In general, the fan-blade mechanical shutter will be broken if it is used 200,000 times or so, and in some specific cases it is easy to fail to switch on or off. The advantage of electronic shutter over mechanical shutter is high-reliability and stability when the observatory shoots a large number of pictures. The electronic shutter is a relatively perfect choice for the observatory. 

  Best Match for a HyperStar or RASA System

  The round camera case design of QHY268M and the imager size is your best match for Hyperstar or RASA systems. 

  USB3.0

  Using the USB3.0 interface you transfer at 6/fps. 

  TEC Cooling

  The QHY268M has regulated TEC Cooling with 2-stage TE Cooler. 

  The differences between the Photographic and Professional versions include:

  • Professional version has a high-speed fiber interface and USB3.0 interface. Photographic version has only a USB3.0 interface.
  • Professional version may has more on-camera DDR3 memory than the Photographic version.
  • Professional version has rich, external, expandable I/O signals as well as a rich resource that allow the user to customize the FPGA inside the camera.
  • Professional version is more expensive than Photographic version.
  • Professional version has a longer body to accommodate the length of the optical fiber interface.

• specifications

  ADC	16 bit
  Anti Dew Heater	Yes
  Back Focus	17.5 mm
  Buffer	2 GB DDR3
  Camera Connection	Female M54x.75
  Color or Mono	Monochrome
  Cooled	Cooled
  Delta T	35C
  Dynamic Range	14.1 Stops
  Free Shipping	Yes
  Full Rez Frame Rate	6.8fps
  Full Well	51ke
  Max Frame Rate	50fps
  Mega Pixels	26.4 MP
  Peak QE	78%
  Pixel Array	6280 x 4210
  Pixel Size	3.76 microns
  Port	USB 3.0
  Read Noise	3e
  Sensor Diagonal	28.4 mm
  Sensor Size	C Format
  Sensor Type	CMOS
  Sensor	Sony IMX571
  Free Shipping	Yes

• included items

  • QHY QHY268M Photographic Cooled Monochrome CMOS Camera