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QHY QHY268 Pro Cooled
판매가	3,420,000원
배송방식	일반배송
배송비	주문금액별 차등 (무료)
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• The Professional version of the QHY268C scientific camera.
• Ultra High Resolution with a 26 MP APS-C format, it is a color back illuminated cooled CMOS camera with 16-bit ADC.
• Great Full Well of 51ke- at 3.76 um.
• Ultra Low Read Noise with only 1 to 4 electron of read noise at high gain and a 15/fps high readout speed.
• hort exposures, narrow band imaging, etc., making this large area sensor ideal for sky surveys and time domain astronomy.

The QHY268 Pro Cooled Color CMOS Camera is ultra high resolution at 26 MP. Its APS-C format sensor is back-illuminated with 16-bit ADC and 3.76 um pixel size.

This camera is still not released, but you may pre-order it.  Note that the price is tentative and is subject to change.  The specs are also tentative and may vary.

Native 16-bit ADC, 65536 Levels

The QHY268C 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. 

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 QHY268C has a full well capacity of 50ke- 

Ultra Low Read Noise

With a 1 to 4 e read noise, the QHY268C 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 System

The round camera case design of QHY268C and the image size is your best match for HyperStar systems. 

USB3.0 and 2 x 10 GB Fiber Optic I/O Ports

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

This Pro version also has 2 (A and B) 10 Gigabyte Fiber Optic ports, for rich, external, expandable I/O signals as well as a rich resource that allow the user to customize the FPGA inside the camera.

TEC Cooling

The QHY268C has regulated TEC Cooling with 2-stage TE Cooler. 

The differences between the Photographic and Professional versions:

• 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.
• Also: The Early Bird version of the camera has the hardware design of the Professional model, but the functions of the Photographic version. For example, the Early Bird version will have sockets for both Ethernet and USB3.0 but only the USB socket is active. Users who buy the Early Bird version can upgrade it to the full Professional version QHY268C-Pro by paying the difference in price. （Those that purchase the  Photographic version have no chance to upgrade into the Professional version.） The Early Bird version also includes a free set of the QHYCCD 0.5 mm-27.5 mm spacers for precise and solid back-focus adjustment in a variety of optical train configurations. Early Bird purchasers can also order a QHYCFW3L (7-position, 2-inch, 50 mm) or QHYCFW3XL (9- position, 2-inch, 50 mm) motor-driven filter wheel with the QHY268 camera at 10% off the list price of the filter wheel.

• 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	Color
  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	10 GB Fiber Optic (A)
  Port	10 GB Fiber Optic (B)
  Port	USB 3.0
  Read Noise	3e
  Sensor Diagonal	28.4 mm
  Sensor Size	C Format
  Sensor Type	CMOS
  Sensor	Sony IMX571
  Special Feature	1eNeg/ADU at High Gain
  Special Feature	75ke at Extend Mode